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Chatterjee S, Biswas S, Sourav S, Rath J, Akhil S, Mishra N. Strategies To Achieve Long-Term Stability in Lead Halide Perovskite Nanocrystals and Its Optoelectronic Applications. J Phys Chem Lett 2024; 15:10118-10137. [PMID: 39332015 DOI: 10.1021/acs.jpclett.4c02240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2024]
Abstract
The lead halide perovskite (LHP) nanocrystals (NCs) research area is flourishing due to their exceptional properties and great potential for a wide range of applications in optoelectronics and photovoltaics. Yet, despite the momentum in the field, perovskite devices are not yet ready for commercialization due to degradation caused by intrinsic phase transitions and external factors such as moisture, temperature, and ultraviolet (UV) light. To attain long-term stability, we analyze the origin of instabilities and describe different strategies such as surface modification, encapsulation, and doping for long-term viability. We also assess how these stabilizing strategies have been utilized to obtain optoelectronic devices with long-term stability. This Mini-Review also outlines the future direction of each strategy for producing highly efficient and ultrastable LHP NCs for sustainable applications.
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Affiliation(s)
- Shovon Chatterjee
- Institute of Chemical Technology-Indian Oil Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre, Samantapuri Mouza, Gajapati Nagar, Bhubaneswar, Odisha 751013, India
| | - Subarna Biswas
- Institute of Chemical Technology-Indian Oil Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre, Samantapuri Mouza, Gajapati Nagar, Bhubaneswar, Odisha 751013, India
| | - Smruti Sourav
- Institute of Chemical Technology-Indian Oil Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre, Samantapuri Mouza, Gajapati Nagar, Bhubaneswar, Odisha 751013, India
| | - Jyotisman Rath
- Institute of Chemical Technology-Indian Oil Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre, Samantapuri Mouza, Gajapati Nagar, Bhubaneswar, Odisha 751013, India
| | - Syed Akhil
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
| | - Nimai Mishra
- Institute of Chemical Technology-Indian Oil Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre, Samantapuri Mouza, Gajapati Nagar, Bhubaneswar, Odisha 751013, India
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2
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Wang Y, Liu ZS, Zhao F, Liu WZ, Shen WS, Zhou DY, Wang YK, Liao LS. Ligand-Solvent Coordination Enables Comprehensive Trap Passivation for Efficient Near-Infrared Quantum Dot Light-Emitting Diodes. Angew Chem Int Ed Engl 2024; 63:e202407833. [PMID: 38984901 DOI: 10.1002/anie.202407833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/11/2024]
Abstract
Near-infrared light-emitting diodes (NIR LEDs) based on perovskite quantum dots (QDs) have produced external quantum efficiency (EQE) of ~15 %. However, these high-performance NIR-QLEDs suffer from immediate carrier quenching because of the accumulation of migratable ions at the surface of the QDs. These uncoordinated ions and carriers-if not bound to the nanocrystal surface-serve as centers for exciton quenching and device degradation. In this work, we overcome this issue and fabricate high-performance NIR QLEDs by devising a ligand anchoring strategy, which entails dissolving the strong-binding ligand (Guanidine Hydroiodide, GAI) in the mediate-polar solvent. By employing the dye-sensitized device structure (phosphorescent indicator), we demonstrate the elimination of the interface defects. The treated QDs films exhibit an exciton binding energy of 117 meV: this represents a 1.5-fold increase compared to that of the control (74 meV). We report, as a result, the NIR QLEDs with an EQE of 21 % which is a record among NIR perovskite QLEDs. These QLEDs also exhibit a 7-fold higher operational stability than that of the best previously reported NIR QLEDs. Furthermore, we demonstrate that the QDs are compatible with large-area QLEDs: we showcase 900 mm2 QLEDs with EQE approaching 20 %.
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Affiliation(s)
- Ye Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Zong-Shuo Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Feng Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Wei-Zhi Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Wan-Shan Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Dong-Ying Zhou
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Ya-Kun Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for, Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078, Macau, China
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3
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Gahlot K, Kraft JN, Pérez-Escribano M, Koushki RM, Ahmadi M, Ortí E, Kooi BJ, Portale G, Calbo J, Protesescu L. Growth mechanism of oleylammonium-based tin and lead bromide perovskite nanostructures. JOURNAL OF MATERIALS CHEMISTRY. C 2024; 12:15152-15162. [PMID: 39234288 PMCID: PMC11367222 DOI: 10.1039/d4tc02029d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 08/12/2024] [Indexed: 09/06/2024]
Abstract
Metal halide perovskites, particularly using tin and lead as bivalent cations, are well known for their synthetic versatility and ion mobility. These materials possess intriguing ionic properties that allow the formation of 2D Ruddlesden-Popper (RP) and 3D metal halide perovskite nanocrystals (NCs) under similar synthetic conditions. We studied the synthesis mechanism of oleylammonium-based Sn and Pb bromide perovskites 2D Ruddlesden-Popper (RP) in comparison with the 3D CsPbBr3 and CsSnBr3 NCs. Using experimental techniques in combination with theoretical calculations, we studied the interactions of the long-chain organic cations with the inorganic layers and between each other to assess their stability. Our findings suggest that tin bromide is more inclined toward forming higher-order RP phases or 3D NCs than lead bromide. Furthermore, we demonstrate the synthesis of precisely tuned CsSnBr3 3D NCs (7 and 10 nm) using standard surface ligands. When the 3D and 2D tin halide perovskite nanostructures coexist in suspension, the obtained drop-cast thin films showed the preferential positioning of residual RP nanostructures at the interface with the substrate. This study encourages further exploration of low-dimensional hybrid materials and emphasizes the need for understanding mechanisms to develop efficient synthetic routes for high-quality tin-halide perovskite NCs.
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Affiliation(s)
- Kushagra Gahlot
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Julia N Kraft
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Manuel Pérez-Escribano
- Instituto de Ciencia Molecular, Universitat de València c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Razieh M Koushki
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Majid Ahmadi
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universitat de València c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Bart J Kooi
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Giuseppe Portale
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universitat de València c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Loredana Protesescu
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 Groningen 9747AG The Netherlands
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4
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Chen J, Ye L, Wu T, Hua Y, Zhang X. Band Engineering of Perovskite Quantum Dot Solids for High-Performance Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404495. [PMID: 38762761 DOI: 10.1002/adma.202404495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Indexed: 05/20/2024]
Abstract
CsPbI3 perovskite quantum dot (PQD) shows high potential for next-generation photovoltaics due to their tunable surface chemistry, good solution-processability and unique photophysical properties. However, the remained long-chain ligand attached to the PQD surface significantly impedes the charge carrier transport within the PQD solids, thereby predominantly influencing the charge extraction of PQD solar cells (PQDSCs). Herein, a ligand-induced energy level modulation is reported for band engineering of PQD solids to improve the charge extraction of PQDSCs. Detailed theoretical calculations and systemic experimental studies are performed to comprehensively understand the photophysical properties of the PQD solids dominated by the surface ligands of PQDs. The results reveal that 4-nitrobenzenethiol and 4-methoxybenzenethiol molecules with different dipole moments can firmly anchor to the PQD surface through the thiol group to modulate the energy levels of PQDs, and a gradient band structure within the PQD solid is subsequently realized. Consequently, the band-engineered PQDSC delivers an efficiency of up to 16.44%, which is one of the highest efficiencies of CsPbI3 PQDSCs. This work provides a feasible avenue for the band engineering of PQD solids by tuning the surface chemistry of PQDs for high-performing solar cells or other optoelectronic devices.
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Affiliation(s)
- Jingxuan Chen
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Lvhao Ye
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Tai Wu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
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5
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Gou Y, Tang S, Yuan C, Zhao P, Chen J, Yu H. Research progress of green antisolvent for perovskite solar cells. MATERIALS HORIZONS 2024; 11:3465-3481. [PMID: 38745534 DOI: 10.1039/d4mh00290c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Conventional antisolvents such as chlorobenzene and benzotrifluoride are highly toxic and volatile, and therefore not preferred for large-scale fabrication. As such, green antisolvents are favored for the eco-friendly fabrication of perovskite films. This review primarily discusses the impact of various green antisolvents on the fabrication of thin perovskite films and analyzes the main chemical characteristics of these green antisolvents. It also interprets the impact of green antisolvent treatment on crystal growth and nucleation crystallization mechanisms. It introduces the effective fabrication of large-area devices using green antisolvents and analyzes the mechanisms by which green antisolvents enhance device stability. Subsequently, several green antisolvents capable of preparing highly stable and efficient devices are listed. Finally, we outline the key challenges and future prospects of antisolvent treatment. This review paves the way for green fabrication of industrial perovskite solar cells.
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Affiliation(s)
- Yunsheng Gou
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
| | - Shiying Tang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
| | - Chunlong Yuan
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
| | - Pan Zhao
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
| | - Jingyu Chen
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
| | - Hua Yu
- School of Physical Sciences, Great Bay University, Dongguan, Guangdong, China.
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6
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Deng C, Huang Q, Fu Z, Lu Y. Ligand Engineering of Inorganic Lead Halide Perovskite Quantum Dots toward High and Stable Photoluminescence. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1201. [PMID: 39057878 PMCID: PMC11280295 DOI: 10.3390/nano14141201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/03/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
The ligand engineering of inorganic lead halide perovskite quantum dots (PQDs) is an indispensable strategy to boost their photoluminescence stability, which is pivotal for optoelectronics applications. CsPbX3 (X = Cl, Br, I) PQDs exhibit exceptional optical properties, including high color purity and tunable bandgaps. Despite their promising characteristics, environmental sensitivity poses a challenge to their stability. This article reviews the solution-based synthesis methods with ligand engineering. It introduces the impact of factors like humidity, temperature, and light exposure on PQD's instability, as well as in situ and post-synthesis ligand engineering strategies. The use of various ligands, including X- and L-type ligands, is reviewed for their effectiveness in enhancing stability and luminescence performance. Finally, the significant potential of ligand engineering for the broader application of PQDs in optoelectronic devices is also discussed.
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Affiliation(s)
- Changbo Deng
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Qiuping Huang
- Hefei National Research Center for Physical Sciences at the Microscale, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Zhengping Fu
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Hefei National Research Center for Physical Sciences at the Microscale, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Yalin Lu
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Hefei National Research Center for Physical Sciences at the Microscale, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230026, China
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7
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Morais E, Lemes MA, Souza NRS, Ito AS, Duarte EL, Silva RS, Brochsztain S, Souza JA. Unraveling Interfacial Photoinduced Charge Transfer and Localization in CsPbBr 3 Nanocrystals/Naphthalenediimide. ACS OMEGA 2024; 9:22296-22304. [PMID: 38799375 PMCID: PMC11112556 DOI: 10.1021/acsomega.4c01651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 05/29/2024]
Abstract
Halide perovskites have attracted much attention for energy conversion. However, efficient charge carrier generation, separation, and mobility remain the most important issues limiting the higher efficiency of solar cells. An efficient interfacial charge transfer process associated with exciton dynamics between all-inorganic CsPbBr3 nanocrystals and organic electron acceptors has been suggested. We observed a strong PL quenching of 78% in thin films when silane-functionalized naphthalenediimides (SNDI), used as electron-acceptors, are anchored on CsPbBr3 nanocrystals. Optical and structural characterizations confirm the charge transfer process without QDs degradation. The issue of whether these transferred charges are indeed available for utilization in solar cells remains uncertain. Our results reveal that the CsPbBr3 nanocrystals capped with these electron-acceptor SNDI molecules show a drastic increase in the electrical resistance and the absence of a photoconductivity effect. The results suggest charge transfer followed by strong localization of the charge carriers, preventing their extraction toward the electrodes of solar cell devices. We hope that this crucial aspect to attract attention and unveil a potential mechanism for charge delocalization, which could, in turn, lead to a groundbreaking enhancement in solar cell efficiency.
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Affiliation(s)
- Eliane
A. Morais
- Center
for Human and Natural Sciences, Federal
University of ABC, Santo
André 09210-580, São Paulo, Brazil
| | - Maykon A. Lemes
- Center
for Human and Natural Sciences, Federal
University of ABC, Santo
André 09210-580, São Paulo, Brazil
| | - Natalilian R. S. Souza
- Center
for Human and Natural Sciences, Federal
University of ABC, Santo
André 09210-580, São Paulo, Brazil
| | - Amando Siuiti Ito
- Engineering,
Modeling and Applied Social Sciences Center, Federal University of ABC, Santo
André 09280-560, Brazil
- Institute
of Physics, University of São Paulo, São Paulo 05508-060, Brazil
| | - Evandro L. Duarte
- Institute
of Physics, University of São Paulo, São Paulo 05508-060, Brazil
| | - Ronaldo S. Silva
- Federal
University of Sergipe, São
Cristóvão 49100-000, SE, Brazil
| | - Sergio Brochsztain
- Engineering,
Modeling and Applied Social Sciences Center, Federal University of ABC, Santo
André 09280-560, Brazil
| | - Jose A. Souza
- Center
for Human and Natural Sciences, Federal
University of ABC, Santo
André 09210-580, São Paulo, Brazil
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8
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Zhang X, Huang Q, Yin W, Zheng W. Challenges in Developing Perovskite Nanocrystals for Commercial Applications. Chempluschem 2024; 89:e202300693. [PMID: 38179846 DOI: 10.1002/cplu.202300693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/06/2024]
Abstract
Zero-dimensional lead halide perovskite nanocrystals (NCs) exhibit size-dependent bandgap and carrier confinement compared to bulk counterparts due to the quantum confinement effect, making them essential for achieving wide-color-gamut displays, studying excitonic spin relaxation, and constructing superlattices. Despite their promising potential, they face a variety of technical bottlenecks, such as insufficient color reproducibility, limited large-scale production, low stability, and toxicity. An outline of a research roadmap is provided in the review, which highlights key challenges in developing perovskite NCs for commercial applications.
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Affiliation(s)
- Xiaoyu Zhang
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun, 130012, P. R. China
| | - Qianqian Huang
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun, 130012, P. R. China
| | - Wenxu Yin
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun, 130012, P. R. China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun, 130012, P. R. China
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9
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Teng H, Ma L, Cui C, Li Z, Chen K, Ming X, Guo Y, Zhang Q, Ge Z, Cheng Y, Pan A, Zhang Y. Luminescent Perovskite-Cross-Linked Polymer with Low Shrinkage and Excellent Stability. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38685579 DOI: 10.1021/acsami.4c03150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
When organic cross-linked polymers are combined with metal halide perovskite nanocrystals (PNCs) for realizing luminescent perovskite-polymer display materials, the stability of PNCs is enhanced and their shrinkage is suppressed. This work presents a feasible strategy for preparing CsPbBr3 nanocrystals (NCs) within a polydicyclopentadiene (PDCPD) thermosetting cross-linked resin matrix simultaneously via a one-step reaction. The obtained PDCPD@PNCs composite exhibits narrow peak half-widths (15-20 nm), high light transmittance (80%), low curing volume shrinkage (1.4%), tunable tensile properties, excellent stability, and a photoluminescence quantum yield (PLQY) of 44.3%. The composite material exhibits long-term stability in water, acid, and base solutions for over 90 days, with the PL intensity being maintained at over 90%. Furthermore, the composite is highly resistant to polar organic solvents owing to the insolubility imparted by cross-linking. White LEDs (WLED) fabricated using the as-prepared composite demonstrate excellent potential as light sources in optical devices.
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Affiliation(s)
- Haoqing Teng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Li Ma
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Chenhui Cui
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhen Li
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Kexiang Chen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaoqing Ming
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yinzhou Guo
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Qiang Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhishen Ge
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yilong Cheng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Aizhao Pan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yanfeng Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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10
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Roy M, Sykora M, Aslam M. Chemical Aspects of Halide Perovskite Nanocrystals. Top Curr Chem (Cham) 2024; 382:9. [PMID: 38430313 DOI: 10.1007/s41061-024-00453-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 01/24/2024] [Indexed: 03/03/2024]
Abstract
Halide perovskite nanocrystals (HPNCs) are currently among the most intensely investigated group of materials. Structurally related to the bulk halide perovskites (HPs), HPNCs are nanostructures with distinct chemical, optical, and electronic properties and significant practical potential. One of the keys to the effective exploitation of the HPNCs in advanced technologies is the development of controllable, reproducible, and scalable methods for preparation of materials with desired compositions, phases, and shapes and low defect content. Another important condition is a quantitative understanding of factors affecting the chemical stability and the optical and electronic properties of HPNCs. Here we review important recent developments in these areas. Following a brief historical prospective, we provide an overview of known chemical methods for preparation of HPNCs and approaches used to control their composition, phase, size, and shape. We then review studies of the relationship between the chemical composition and optical properties of HPNCs, degradation mechanisms, and effects of charge injection. Finally, we provide a short summary and an outlook. The aim of this review is not to provide a comprehensive summary of all relevant literature but rather a selection of highlights, which, in the subjective view of the authors, provide the most significant recent observations and relevant analyses.
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Affiliation(s)
- Mrinmoy Roy
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - Milan Sykora
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - M Aslam
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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11
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Zhang J, Zhu Y. Exploiting the Photo-Physical Properties of Metal Halide Perovskite Nanocrystals for Bioimaging. Chembiochem 2024; 25:e202300683. [PMID: 38031246 DOI: 10.1002/cbic.202300683] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/29/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Perovskite nanomaterials have recently been exploited for bioimaging applications due to their unique photo-physical properties, including high absorbance, good photostability, narrow emissions, and nonlinear optical properties. These attributes outperform conventional fluorescent materials such as organic dyes and metal chalcogenide quantum dots and endow them with the potential to reshape a wide array of bioimaging modalities. Yet, their full potential necessitates a deep grasp of their structure-attribute relationship and strategies for enhancing water stability through surface engineering for meeting the stringent and unique requirements of each individual imaging modality. This review delves into this evolving frontier, highlighting how their distinctive photo-physical properties can be leveraged and optimized for various bioimaging modalities, including visible light imaging, near-infrared imaging, and super-resolution imaging.
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Affiliation(s)
- Jiahui Zhang
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Yifan Zhu
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas, 77005, USA
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12
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Bodnarchuk MI, Feld LG, Zhu C, Boehme SC, Bertolotti F, Avaro J, Aebli M, Mir SH, Masciocchi N, Erni R, Chakraborty S, Guagliardi A, Rainò G, Kovalenko MV. Colloidal Aziridinium Lead Bromide Quantum Dots. ACS NANO 2024. [PMID: 38320982 PMCID: PMC10883123 DOI: 10.1021/acsnano.3c11579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The compositional engineering of lead-halide perovskite nanocrystals (NCs) via the A-site cation represents a lever to fine-tune their structural and electronic properties. However, the presently available chemical space remains minimal since, thus far, only three A-site cations have been reported to favor the formation of stable lead-halide perovskite NCs, i.e., Cs+, formamidinium (FA), and methylammonium (MA). Inspired by recent reports on bulk single crystals with aziridinium (AZ) as the A-site cation, we present a facile colloidal synthesis of AZPbBr3 NCs with a narrow size distribution and size tunability down to 4 nm, producing quantum dots (QDs) in the regime of strong quantum confinement. NMR and Raman spectroscopies confirm the stabilization of the AZ cations in the locally distorted cubic structure. AZPbBr3 QDs exhibit bright photoluminescence with quantum efficiencies of up to 80%. Stabilized with cationic and zwitterionic capping ligands, single AZPbBr3 QDs exhibit stable single-photon emission, which is another essential attribute of QDs. In particular, didodecyldimethylammonium bromide and 2-octyldodecyl-phosphoethanolamine ligands afford AZPbBr3 QDs with high spectral stability at both room and cryogenic temperatures, reduced blinking with a characteristic ON fraction larger than 85%, and high single-photon purity (g(2)(0) = 0.1), all comparable to the best-reported values for MAPbBr3 and FAPbBr3 QDs of the same size.
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Affiliation(s)
- Maryna I Bodnarchuk
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Leon G Feld
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Chenglian Zhu
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Simon C Boehme
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Federica Bertolotti
- Department of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, Como 22100, Italy
| | - Jonathan Avaro
- Centre for X-ray Analytics & Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen 9014, Switzerland
| | - Marcel Aebli
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Showkat Hassan Mir
- Materials Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, A C.I. of Homi Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj (Allahabad) 211019, India
| | - Norberto Masciocchi
- Department of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, Como 22100, Italy
| | - Rolf Erni
- Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Sudip Chakraborty
- Materials Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, A C.I. of Homi Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj (Allahabad) 211019, India
| | - Antonietta Guagliardi
- Istituto di Cristallografia and To.Sca.Lab, Consiglio Nazionale delle Ricerche, via Valleggio 11, Como 22100, Italy
| | - Gabriele Rainò
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Maksym V Kovalenko
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 16419, South Korea
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13
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Li M, Bao Y, Hui W, Sun K, Gu L, Kang X, Wang D, Wang B, Deng H, Guo R, Li Z, Jiang X, Müller-Buschbaum P, Song L, Huang W. In Situ Surface Reconstruction toward Planar Heterojunction for Efficient and Stable FAPbI 3 Quantum Dot Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309890. [PMID: 38011853 DOI: 10.1002/adma.202309890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/14/2023] [Indexed: 11/29/2023]
Abstract
Pure-phase α-FAPbI3 quantum dots (QDs) are the focus of an increasing interest in photovoltaics due to their superior ambient stability, large absorption coefficient, and long charge-carrier lifetime. However, the trap states induced by the ligand-exchange process limit the photovoltaic performances. Here, a simple post treatment using methylamine thiocyanate is developed to reconstruct the FAPbI3 -QD film surface, in which a MAPbI3 capping layer with a thickness of 6.2 nm is formed on the film top. This planar perovskite heterojunction leads to a reduced density of trap-states, a decreased band gap, and a facilitated charge carrier transport. As a result, a record high power conversion efficiency (PCE) of 16.23% with negligible hysteresis is achieved for the FAPbI3 QD solar cell, and it retains over 90% of the initial PCE after being stored in ambient environment for 1000 h.
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Affiliation(s)
- Maoxin Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Yaqi Bao
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Wei Hui
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Kun Sun
- Department of Physics, Chair for Functional Materials, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Lei Gu
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Xinxin Kang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Dourong Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Baohua Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Haoran Deng
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Renjun Guo
- Department of Physics, Chair for Functional Materials, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Zerui Li
- Department of Physics, Chair for Functional Materials, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Xiongzhuo Jiang
- Department of Physics, Chair for Functional Materials, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Peter Müller-Buschbaum
- Department of Physics, Chair for Functional Materials, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748, Garching, Germany
| | - Lin Song
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE), Institute of Flexible Electronics (IFE), Ningbo Institute of Northwestern Polytechnical University, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
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14
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Lim JWM, Guo Y, Feng M, Cai R, Sum TC. Making and Breaking of Exciton Cooling Bottlenecks in Halide Perovskite Nanocrystals. J Am Chem Soc 2024; 146:437-449. [PMID: 38158611 DOI: 10.1021/jacs.3c09761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Harnessing quantum confinement (QC) effects in semiconductors to retard hot carrier cooling (HCC) is an attractive approach for enabling efficient hot carrier extraction to overcome the Shockley-Queisser limit. However, there is a debate about whether halide perovskite nanocrystals (PNCs) can effectively exploit these effects. To address this, we utilized pump-probe and multipulse pump-push-probe spectroscopy to investigate HCC behavior in PNCs of varying sizes and cation compositions. Our results validate the presence of an intrinsic phonon bottleneck with clear manifestations of QC effects in small CsPbBr3 PNCs exhibiting slower HCC rates compared to those of larger PNCs. However, the replacement of inorganic Cs+ with organic cations suppresses this intrinsic bottleneck. Furthermore, PNCs exhibit distinct size-dependent HCC behavior in response to changes in the cold carrier densities. We attribute this to the enhanced exciton-exciton interactions in strongly confined PNCs that facilitate Auger heating. Importantly, our findings dispel the existing controversy and provide valuable insights into design principles for engineering QC effects in PNC hot carrier applications.
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Affiliation(s)
- Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yuanyuan Guo
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
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15
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Li W, Hao M, Baktash A, Wang L, Etheridge J. The role of ion migration, octahedral tilt, and the A-site cation on the instability of Cs 1-xFA xPbI 3. Nat Commun 2023; 14:8523. [PMID: 38129416 PMCID: PMC10739958 DOI: 10.1038/s41467-023-44235-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Organic-inorganic hybrid perovskites are promising materials for the next generation photovoltaics and optoelectronics; however, their practical application has been hindered by poor structural stability mainly caused by ion migration and external stimuli. Understanding the mechanism(s) of ion migration and structure decomposition is thus critical. Here we observe the sequence of structural changes at the atomic level that precede structural decomposition in the technologically important Cs1-xFAxPbI3 using ultralow dose transmission electron microscopy. We find that these changes differ, depending upon the A-site composition. Initially, there is a random loss of FA+, complemented by the loss of I-. The remaining FA+ and I- ions then migrate, unit cell by unit cell, into an ordered and more stable phase with a √2 x √2 superstructure. Further ion loss is accompanied by A-site dependent octahedral tilt modes and associated tetragonal phases with different stabilities. These observations of the loss of FA+/I- ion pairs, ion migration, octahedral tilt modes, and the role of the A-cation, provide insights into the atomic-scale structural mechanisms that drive and block ion loss and ion migration, opening pathways to inhibit ion loss, migration and improve structural stability.
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Affiliation(s)
- Weilun Li
- School of Physics and Astronomy, Monash University, Clayton, VIC, 3800, Australia.
| | - Mengmeng Hao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Ardeshir Baktash
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Lianzhou Wang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia.
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Joanne Etheridge
- School of Physics and Astronomy, Monash University, Clayton, VIC, 3800, Australia.
- Monash Centre for Electron Microscopy, Monash University, Clayton, VIC, 3800, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia.
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16
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Collantes C, Teixeira W, González-Pedro V, Bañuls MJ, Quintero-Campos P, Morais S, Maquieira Á. Water-assisted synthesis of stable and multicolored CsPbX 3@SiO 2 core-shell nanoparticles as fluorescent probes for biosensing. Dalton Trans 2023; 52:18464-18472. [PMID: 38013493 DOI: 10.1039/d3dt02593d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Colloidal lead halide perovskite nanocrystals are highly luminescent materials with great promise as fluorescent probes in biosensing as long as their intrinsic instability in aqueous media is effectively addressed. In this study, we successfully prepared stable and multicolored CsPbX3@SiO2 (X = Cl/Br, Br and I) core-shell nanoparticles through a simple method based on the water-induced transformation of Cs4PbX6 into CsPbX3, combined with sol-gel procedures. We observed that the concentration of the Cs4PbX6 precursor plays a crucial role in the formation of isolated nanospheres with uniform silica coating and in controlling the number of core-free particles. Furthermore, our research expands this approach to other halide compositions, resulting in multicolored core-shell nanoparticles with emission wavelengths ranging from 490 to 700 nm, average sizes below 30 nm, and photoluminescence quantum yields close to 60%. Unlike in previous reports, the silica coating boosts the photoluminescence quantum yields compared to uncoated counterparts and provides increased structural stability for more than four days. Moreover, a controlled thermal treatment confers water stability to the as-synthesized nanoparticles. To establish the feasibility of the developed materials as fluorescent probes, we successfully demonstrated their specific recognition of a humanized antibody (omalizumab) used in treating patients with severe allergic asthma. This work paves the way to develop in vitro tests using CsPbX3@SiO2 core-shell nanoparticles as fluorogenic probes.
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Affiliation(s)
- Cynthia Collantes
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - William Teixeira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - Victoria González-Pedro
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
| | - María-José Bañuls
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
| | - Pedro Quintero-Campos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
| | - Sergi Morais
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
- Unidad Mixta UPV-La Fe, Nanomedicine and Sensors, IIS La Fe, Valencia, Spain
| | - Ángel Maquieira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain.
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, E46022 València, Spain
- Unidad Mixta UPV-La Fe, Nanomedicine and Sensors, IIS La Fe, Valencia, Spain
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17
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Singh AN, Jana A, Selvaraj M, Assiri MA, Yun S, Nam KW. Achieving Order in Disorder: Stabilizing Red Light-Emitting α-Phase Formamidinium Lead Iodide. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:3049. [PMID: 38063745 PMCID: PMC10708465 DOI: 10.3390/nano13233049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 09/05/2024]
Abstract
While formamidinium lead iodide (FAPbI3) halide perovskite (HP) exhibits improved thermal stability and a wide band gap, its practical applicability is chained due to its room temperature phase transition from pure black (α-phase) to a non-perovskite yellow (δ-phase) when exposed to humidity. This phase transition is due to the fragile ionic bonding between the cationic and anionic parts of HPs during their formation. Herein, we report the synthesis of water-stable, red-light-emitting α-phase FAPbI3 nanocrystals (NCs) using five different amines to overcome these intrinsic phase instabilities. The structural, morphological, and electronic characterization were obtained using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), and X-ray photoelectron spectroscopy (XPS), respectively. The photoluminescence (PL) emission and single-particle imaging bear the signature of dual emission in several amines, indicating a self-trapped excited state. Our simple strategy to stabilize the α-phase using various amine interfacial interactions could provide a better understanding and pave the way for a novel approach for the stabilization of perovskites for prolonged durations and their multifunctional applications.
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Affiliation(s)
- Aditya Narayan Singh
- Department of Energy and Materials Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea;
| | - Atanu Jana
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea;
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; (M.S.); (M.A.A.)
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; (M.S.); (M.A.A.)
| | - Sua Yun
- Department of Advanced Battery Convergence Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea;
| | - Kyung-Wan Nam
- Department of Energy and Materials Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea;
- Department of Advanced Battery Convergence Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea;
- Center for Next Generation Energy and Electronic Materials, Dongguk University—Seoul, Seoul 04620, Republic of Korea
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18
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Bhat CP, Godbole AK, Bandyopadhyay D. The role of oxygen defects in the electronic, optical and phonon dispersion of the LAGO perovskite: a density functional theory investigation. Dalton Trans 2023; 52:16128-16139. [PMID: 37930338 DOI: 10.1039/d3dt02846a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The study aims to investigate the electronic, optical and phonon dispersion properties of a pure and 2.5% O-defect induced LAGO perovskite, using density functional theory (DFT) with generalized gradient approximation (GGA) and the PBE functional. The research reveals a significant reduction in the band gap from 3.27 eV in pure LAGO to 2.18 eV in defect-induced LAGO. The defect-induced LAGO exhibits relatively strong light absorption in the visible region compared to pure LAGO. The phonon-dispersion analysis identifies one acoustic and two transverse optical mode branches. The calculated Debye temperatures for pure and defect-induced systems are 469.92 K and 463.69 K, respectively, attributed to weaker bonds in defect-induced LAGO. The findings offer fundamental insights into the impact of oxygen vacancies on the electronic, optical, and phonon properties of the LAGO perovskite that can potentially improve the electronic and optoelectronic devices operating across a wide range of spectral frequencies.
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Affiliation(s)
- Chaithanya P Bhat
- Department of Physics, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan - 333031, India.
| | - Ashwin K Godbole
- Department of Physics, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan - 333031, India.
| | - Debashis Bandyopadhyay
- Department of Physics, Birla Institute of Technology and Science Pilani, Pilani, Rajasthan - 333031, India.
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19
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Ferri F, Bossuto MC, Anzini P, Cervellino A, Guagliardi A, Bertolotti F, Masciocchi N. Site-occupancy factors in the Debye scattering equation. A theoretical discussion on significance and correctness. Acta Crystallogr A Found Adv 2023; 79:587-596. [PMID: 37916738 PMCID: PMC10626651 DOI: 10.1107/s2053273323008446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/26/2023] [Indexed: 11/03/2023] Open
Abstract
The Debye scattering equation (DSE) [Debye (1915). Ann. Phys. 351, 809-823] is widely used for analyzing total scattering data of nanocrystalline materials in reciprocal space. In its modified form (MDSE) [Cervellino et al. (2010). J. Appl. Cryst. 43, 1543-1547], it includes contributions from uncorrelated thermal agitation terms and, for defective crystalline nanoparticles (NPs), average site-occupancy factors (s.o.f.'s). The s.o.f.'s were introduced heuristically and no theoretical demonstration was provided. This paper presents in detail such a demonstration, corrects a glitch present in the original MDSE, and discusses the s.o.f.'s physical significance. Three new MDSE expressions are given that refer to distinct defective NP ensembles characterized by: (i) vacant sites with uncorrelated constant site-occupancy probability; (ii) vacant sites with a fixed number of randomly distributed atoms; (iii) self-excluding (disordered) positional sites. For all these cases, beneficial aspects and shortcomings of introducing s.o.f.'s as free refinable parameters are demonstrated. The theoretical analysis is supported by numerical simulations performed by comparing the corrected MDSE profiles and the ones based on atomistic modeling of a large number of NPs, satisfying the structural conditions described in (i)-(iii).
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Affiliation(s)
- Fabio Ferri
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università degli Studi dell’Insubria, via Valleggio 11, Como, 22100, Italy
| | - Maria Chiara Bossuto
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università degli Studi dell’Insubria, via Valleggio 11, Como, 22100, Italy
| | - Pietro Anzini
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università degli Studi dell’Insubria, via Valleggio 11, Como, 22100, Italy
| | - Antonio Cervellino
- Swiss Light Source, Paul Scherrer Institute, Villigen PSI, 5232, Switzerland
| | - Antonietta Guagliardi
- Istituto di Cristallografia (IC) & To.Sca.Lab, Consiglio Nazionale delle Ricerche (CNR), via Valleggio 11, Como, 22100, Italy
| | - Federica Bertolotti
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università degli Studi dell’Insubria, via Valleggio 11, Como, 22100, Italy
| | - Norberto Masciocchi
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università degli Studi dell’Insubria, via Valleggio 11, Como, 22100, Italy
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20
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Padhiar MA, Zhang S, Wang M, Zamin Khan N, Iqbal S, Ji Y, Muhammad N, Khan SA, Pan S. Synergistic Enhancement of Near-Infrared Emission in CsPbCl 3 Host via Co-Doping with Yb 3+ and Nd 3+ for Perovskite Light Emitting Diodes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2703. [PMID: 37836344 PMCID: PMC10574356 DOI: 10.3390/nano13192703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Perovskite nanocrystals (PeNCs) have emerged as a promising class of luminescent materials offering size and composition-tunable luminescence with high efficiency and color purity in the visible range. PeNCs doped with Yb3+ ions, known for their near-infrared (NIR) emission properties, have gained significant attention due to their potential applications. However, these materials still face challenges with weak NIR electroluminescence (EL) emission and low external quantum efficiency (EQE), primarily due to undesired resonance energy transfer (RET) occurring between the host and Yb3+ ions, which adversely affects their emission efficiency and device performance. Herein, we report the synergistic enhancement of NIR emission in a CsPbCl3 host through co-doping with Yb3+/Nd3+ ions for perovskite LEDs (PeLEDs). The co-doping of Yb3+/Nd3+ ions in a CsPbCl3 host resulted in enhanced NIR emission above 1000 nm, which is highly desirable for NIR optoelectronic applications. This cooperative energy transfer between Yb3+ and Nd3+ can enhance the overall efficiency of energy conversion. Furthermore, the PeLEDs incorporating the co-doped CsPbCl3/Yb3+/Nd3+ PeNCs as an emitting layer exhibited significantly enhanced NIR EL compared to the single doped PeLEDs. The optimized co-doped PeLEDs showed improved device performance, including increased EQE of 6.2% at 1035 nm wavelength and low turn-on voltage. Our findings highlight the potential of co-doping with Yb3+ and Nd3+ ions as a strategy for achieving synergistic enhancement of NIR emission in CsPbCl3 perovskite materials, which could pave the way for the development of highly efficient perovskite LEDs for NIR optoelectronic applications.
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Affiliation(s)
- Muhammad Amin Padhiar
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (M.A.P.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou 510555, China
- Key Lab of Si-based Information Materials & Devices and Integrated Circuits Design, Department of Education of Guangdong Province, Guangzhou 510006, China
| | - Shaolin Zhang
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (M.A.P.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou 510555, China
- Key Lab of Si-based Information Materials & Devices and Integrated Circuits Design, Department of Education of Guangdong Province, Guangzhou 510006, China
| | - Minqiang Wang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education International Center for Dielectric Research Xi’an Jiaotong University, Xi’an 710049, China (Y.J.)
| | - Noor Zamin Khan
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (M.A.P.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Shoaib Iqbal
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education International Center for Dielectric Research Xi’an Jiaotong University, Xi’an 710049, China (Y.J.)
| | - Yongqiang Ji
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education International Center for Dielectric Research Xi’an Jiaotong University, Xi’an 710049, China (Y.J.)
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - Nisar Muhammad
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Physics, University of Science and Technology of China, Hefei 230026, China;
| | - Sayed Ali Khan
- Department of Chemistry and Chemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Shusheng Pan
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China; (M.A.P.)
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou 510555, China
- Key Lab of Si-based Information Materials & Devices and Integrated Circuits Design, Department of Education of Guangdong Province, Guangzhou 510006, China
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21
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Livakas N, Toso S, Ivanov YP, Das T, Chakraborty S, Divitini G, Manna L. CsPbCl 3 → CsPbI 3 Exchange in Perovskite Nanocrystals Proceeds through a Jump-the-Gap Reaction Mechanism. J Am Chem Soc 2023; 145:20442-20450. [PMID: 37691231 PMCID: PMC10515632 DOI: 10.1021/jacs.3c06214] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Indexed: 09/12/2023]
Abstract
Halide exchange is a popular strategy to tune the properties of CsPbX3 nanocrystals after synthesis. However, while Cl → Br and Br → I exchanges proceed through the formation of stable mixed-halide nanocrystals, the Cl ⇌ I exchange is more elusive. Indeed, the large size difference between chloride and iodide ions causes a miscibility gap in the CsPbCl3-CsPbI3 system, preventing the isolation of stable CsPb(ClxI1-x)3 nanocrystals. Yet, previous works have claimed that a full CsPbCl3 → CsPbI3 exchange can be achieved. Even more interestingly, interrupting the exchange prematurely yields a mixture of CsPbCl3 and CsPbI3 nanocrystals that coexist without undergoing further transformation. Here, we investigate the reaction mechanism of CsPbCl3 → CsPbI3 exchange in nanocrystals. We show that the reaction proceeds through the early formation of iodide-doped CsPbCl3 nanocrystals covered by a monolayer shell of CsI. These nanocrystals then leap over the miscibility gap between CsPbCl3 and CsPbI3 by briefly transitioning to short-lived and nonrecoverable CsPb(ClxI1-x)3 nanocrystals, which quickly expel the excess chloride and turn into the chloride-doped CsPbI3 nanocrystals found in the final product.
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Affiliation(s)
- Nikolaos Livakas
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università
di Genova, 16146 Genova, Italy
| | - Stefano Toso
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Yurii P. Ivanov
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Tisita Das
- Materials
Theory for Energy Scavenging (MATES) Lab, Department of Physics, Harish-Chandra Research Institute (HRI), A CI of Homi
Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj 211019, India
| | - Sudip Chakraborty
- Materials
Theory for Energy Scavenging (MATES) Lab, Department of Physics, Harish-Chandra Research Institute (HRI), A CI of Homi
Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj 211019, India
| | - Giorgio Divitini
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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22
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Dalui A, Ariga K, Acharya S. Colloidal semiconductor nanocrystals: from bottom-up nanoarchitectonics to energy harvesting applications. Chem Commun (Camb) 2023; 59:10835-10865. [PMID: 37608724 DOI: 10.1039/d3cc02605a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Colloidal semiconductor nanocrystals (NCs) have been extensively investigated owing to their unique properties induced by the quantum confinement effect. The advent of colloidal synthesis routes led to the design of stable colloidal NCs with uniform size, shape, and composition. Metal oxides, phosphides, and chalcogenides (ZnE, CdE, PbE, where E = S, Se, or Te) are few of the most important monocomponent semiconductor NCs, which show excellent optoelectronic properties. The ability to build quantum confined heterostructures comprising two or more semiconductor NCs offer greater customization and tunability of properties compared to their monocomponent counterparts. More recently, the halide perovskite NCs showed exceptional optoelectronic properties for energy generation and harvesting applications. Numerous applications including photovoltaic, photodetectors, light emitting devices, catalysis, photochemical devices, and solar driven fuel cells have demonstrated using these NCs in the recent past. Overall, semiconductor NCs prepared via the colloidal synthesis route offer immense potential to become an alternative to the presently available device applications. This feature article will explore the progress of NCs syntheses with outstanding potential to control the shape and spatial dimensionality required for photovoltaic, light emitting diode, and photocatalytic applications. We also attempt to address the challenges associated with achieving high efficiency devices with the NCs and possible solutions including interface engineering, packing control, encapsulation chemistry, and device architecture engineering.
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Affiliation(s)
- Amit Dalui
- Department of Chemistry, Jogamaya Devi College, Kolkata-700026, India
| | - Katsuhiko Ariga
- Graduate School of Frontier Sciences, The University of Tokyo Kashiwa, Chiba 277-8561, Japan
- International Research Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| | - Somobrata Acharya
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Kolkata-700032, India.
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23
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Mittal M, Garg R, Jana A. Recent progress in the stabilization of low band-gap black-phase iodide perovskite solar cells. Dalton Trans 2023; 52:11750-11767. [PMID: 37605883 DOI: 10.1039/d3dt01581e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
All-inorganic and organic-inorganic hybrid perovskite solar cells (PSCs) have taken a quantum leap owing to their high performance and low-cost solution processability. Their efficiency has been dramatically increased up to ∼26%, matching the conventional inorganic photovoltaics like monocrystalline Si (26.1%), polycrystalline Si (21.6%), CdTe (22.1%), and CIGS (22.3%). Such outstanding performance has been achieved due to their excellent optoelectronic properties, such as a direct bandgap in the visible region, a very high absorption coefficient, a long charge-carrier diffusion length, and ambipolar carrier transport characteristics. FAPbI3 (FA = formamidinium) and CsPbI3 perovskites among the pool of perovskites are recommended for solar cell applications because they meet all the requirements for photovoltaic applications. However, the fundamental problem of these perovskites is that their photoactive black phase is highly unstable under ambient conditions due to small and large sizes of Cs+ and FA+ ions, respectively. The instability of the black phase of these perovskites hinders their applications in photovoltaic devices as a high-quality light absorber layer. Several approaches have been employed to prevent the formation of the photo-inactive yellow phase or to enhance the stability of the black phase of perovskites, such as dimensional and compositional engineering, the addition of external additives, and dimensional engineering. This perspective summarizes the various methods for stabilizing the black phase of CsPbI3 and FAPbI3 perovskites at room temperature as well as their application in photovoltaic devices.
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Affiliation(s)
- Mona Mittal
- Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Knowledge Park I, Greater Noida, Uttar Pradesh 201310, India
| | - Rahul Garg
- Department of Chemical Engineering, Indian Institute of Technology Ropar, Nangal Rd, Hussainpur, Rupnagar, Punjab 140001, India
| | - Atanu Jana
- Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, South Korea.
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24
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Zhao W, Zhang J, Kong F, Ye T. Application of Perovskite Nanocrystals as Fluorescent Probes in the Detection of Agriculture- and Food-Related Hazardous Substances. Polymers (Basel) 2023; 15:2873. [PMID: 37447518 DOI: 10.3390/polym15132873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Halide perovskite nanocrystals (PNCs) are a new kind of luminescent material for fluorescent probes. Compared with traditional nanosized luminescent materials, PNCs have better optical properties, such as high fluorescence quantum yield, tunable band gap, low size dependence, narrow emission bandwidth, and so on. Therefore, they have broad application prospects as fluorescent probes in the detection of agriculture- and food-related hazardous substances. In this paper, the structure and basic properties of PNCs are briefly described. The water stabilization methods, such as polymer surface coating, ion doping, surface passivation, etc.; are summarized. The recent advances of PNCs such as fluorescent probes for detecting hazardous substances in the field of agricultural and food are reviewed, and the detection effect and mechanism are discussed and analyzed. Finally, the problems and solutions faced by PNCs as fluorescent probes in agriculture and food were summarized and prospected. It is expected to provide a reference for further application of PNCs as fluorescent probes in agriculture and food.
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Affiliation(s)
- Wei Zhao
- Maize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
| | - Jianguo Zhang
- Maize Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
| | - Fanjun Kong
- Harbin Technician College, Harbin 150500, China
| | - Tengling Ye
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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25
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Nguyen HA, Dixon G, Dou FY, Gallagher S, Gibbs S, Ladd DM, Marino E, Ondry JC, Shanahan JP, Vasileiadou ES, Barlow S, Gamelin DR, Ginger DS, Jonas DM, Kanatzidis MG, Marder SR, Morton D, Murray CB, Owen JS, Talapin DV, Toney MF, Cossairt BM. Design Rules for Obtaining Narrow Luminescence from Semiconductors Made in Solution. Chem Rev 2023. [PMID: 37311205 DOI: 10.1021/acs.chemrev.3c00097] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Solution-processed semiconductors are in demand for present and next-generation optoelectronic technologies ranging from displays to quantum light sources because of their scalability and ease of integration into devices with diverse form factors. One of the central requirements for semiconductors used in these applications is a narrow photoluminescence (PL) line width. Narrow emission line widths are needed to ensure both color and single-photon purity, raising the question of what design rules are needed to obtain narrow emission from semiconductors made in solution. In this review, we first examine the requirements for colloidal emitters for a variety of applications including light-emitting diodes, photodetectors, lasers, and quantum information science. Next, we will delve into the sources of spectral broadening, including "homogeneous" broadening from dynamical broadening mechanisms in single-particle spectra, heterogeneous broadening from static structural differences in ensemble spectra, and spectral diffusion. Then, we compare the current state of the art in terms of emission line width for a variety of colloidal materials including II-VI quantum dots (QDs) and nanoplatelets, III-V QDs, alloyed QDs, metal-halide perovskites including nanocrystals and 2D structures, doped nanocrystals, and, finally, as a point of comparison, organic molecules. We end with some conclusions and connections, including an outline of promising paths forward.
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Affiliation(s)
- Hao A Nguyen
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Grant Dixon
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Florence Y Dou
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Shaun Gallagher
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Stephen Gibbs
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Dylan M Ladd
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Emanuele Marino
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy
| | - Justin C Ondry
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - James P Shanahan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Eugenia S Vasileiadou
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephen Barlow
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David M Jonas
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Seth R Marder
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel Morton
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Christopher B Murray
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jonathan S Owen
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Dmitri V Talapin
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Michael F Toney
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Brandi M Cossairt
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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26
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Li J, Duan C, Zhang Q, Chen C, Wen Q, Qin M, Chan CCS, Zou S, Wei J, Xiao Z, Zuo C, Lu X, Wong KS, Fan Z, Yan K. Self-Generated Buried Submicrocavities for High-Performance Near-Infrared Perovskite Light-Emitting Diode. NANO-MICRO LETTERS 2023; 15:125. [PMID: 37188867 PMCID: PMC10185725 DOI: 10.1007/s40820-023-01097-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023]
Abstract
Embedding submicrocavities is an effective approach to improve the light out-coupling efficiency (LOCE) for planar perovskite light-emitting diodes (PeLEDs). In this work, we employ phenethylammonium iodide (PEAI) to trigger the Ostwald ripening for the downward recrystallization of perovskite, resulting in spontaneous formation of buried submicrocavities as light output coupler. The simulation suggests the buried submicrocavities can improve the LOCE from 26.8 to 36.2% for near-infrared light. Therefore, PeLED yields peak external quantum efficiency (EQE) increasing from 17.3% at current density of 114 mA cm-2 to 25.5% at current density of 109 mA cm-2 and a radiance increasing from 109 to 487 W sr-1 m-2 with low rolling-off. The turn-on voltage decreased from 1.25 to 1.15 V at 0.1 W sr-1 m-2. Besides, downward recrystallization process slightly reduces the trap density from 8.90 × 1015 to 7.27 × 1015 cm-3. This work provides a self-assembly method to integrate buried output coupler for boosting the performance of PeLEDs.
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Affiliation(s)
- Jiong Li
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China
| | - Chenghao Duan
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
| | - Qianpeng Zhang
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Chang Chen
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China
| | - Qiaoyun Wen
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China
| | - Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
| | - Christopher C S Chan
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 999077, Hong Kong, People's Republic of China
| | - Shibing Zou
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China
| | - Jianwu Wei
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Zuo Xiao
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, People's Republic of China
| | - Chuantian Zuo
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, People's Republic of China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
| | - Kam Sing Wong
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 999077, Hong Kong, People's Republic of China
| | - Zhiyong Fan
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.
| | - Keyou Yan
- School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510000, People's Republic of China.
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27
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Crans KD, Bain M, Bradforth SE, Oron D, Kazes M, Brutchey RL. The surface chemistry of ionic liquid-treated CsPbBr3 quantum dots. J Chem Phys 2023; 158:2888842. [PMID: 37144713 DOI: 10.1063/5.0147918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/19/2023] [Indexed: 05/06/2023] Open
Abstract
The power conversion efficiencies of lead halide perovskite thin film solar cells have surged in the short time since their inception. Compounds, such as ionic liquids (ILs), have been explored as chemical additives and interface modifiers in perovskite solar cells, contributing to the rapid increase in cell efficiencies. However, due to the small surface area-to-volume ratio of the large grained polycrystalline halide perovskite films, an atomistic understanding of the interaction between ILs and perovskite surfaces is limited. Here, we use quantum dots (QDs) to study the coordinative surface interaction between phosphonium-based ILs and CsPbBr3. When native oleylammonium oleate ligands are exchanged off the QD surface with the phosphonium cation as well as the IL anion, a threefold increase in photoluminescent quantum yield of as-synthesized QDs is observed. The CsPbBr3 QD structure, shape, and size remain unchanged after ligand exchange, indicating only a surface ligand interaction at approximately equimolar additions of the IL. Increased concentrations of the IL lead to a disadvantageous phase change and a concomitant decrease in photoluminescent quantum yields. Valuable information regarding the coordinative interaction between certain ILs and lead halide perovskites has been elucidated and can be used for informed pairing of beneficial combinations of IL cations and anions.
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Affiliation(s)
- Kyle D Crans
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Matthew Bain
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Stephen E Bradforth
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Dan Oron
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Miri Kazes
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Richard L Brutchey
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
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28
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Chen J, Tang Z, Zhou Y, Ding S, Li L, Qian L, Xiang C. Glutamine Induced High-Quality Perovskite Film to Improve the Efficiency of NIR Perovskite Light-Emitting Diodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207520. [PMID: 36808211 DOI: 10.1002/smll.202207520] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/03/2023] [Indexed: 05/11/2023]
Abstract
Formamidine lead iodide (FAPbI3 ) is an important material for realizing high-performance near-infrared light-emitting diodes (NIR-LEDs). However, due to the uncontrollable growth of solution-processed films which usually causes low coverage, and poor surface morphology, the development of FAPbI3 -based NIR-LEDs is hindered, restraining its potential industrial applications. In this work, by employing glutamine (Gln) in perovskite precursor, the quality of FAPbI3 film is improved significantly. Due to the ameliorated solution process by the organic additive, the film coverage over the substrate is substantially enhanced. Meanwhile, the trap state of grain is largely reduced. Consequently, NIR perovskite LEDs are demonstrated with a maximum external quantum efficiency (EQE) of 15% with the emission peak at 795 nm, which is four times higher than the device with pristine perovskite film.
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Affiliation(s)
- Jianan Chen
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
- Department of Mechanical Engineering, Ningbo University, Ningbo, Zhejiang, 315201, China
| | - Zhaobing Tang
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
- Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, 1219 West Zhongguan Road, Ningbo, Zhejiang, 315201, China
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315000, China
| | - Yangzhou Zhou
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
| | - Shuo Ding
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
- Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, 1219 West Zhongguan Road, Ningbo, Zhejiang, 315201, China
| | - Liang Li
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Zhuhai MUST Science and Technology Research Institute, Macau University of Science and Technology, Taipa, Macao, 999078, China
| | - Lei Qian
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
- Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, 1219 West Zhongguan Road, Ningbo, Zhejiang, 315201, China
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315000, China
| | - Chaoyu Xiang
- Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Zhongchuang 1st Road, Hangzhou Bay New Zone, Ningbo, Zhejiang, 315000, China
- Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Science, 1219 West Zhongguan Road, Ningbo, Zhejiang, 315201, China
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315000, China
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29
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Jia D, Chen J, Zhuang R, Hua Y, Zhang X. Antisolvent-Assisted In Situ Cation Exchange of Perovskite Quantum Dots for Efficient Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2212160. [PMID: 36841995 DOI: 10.1002/adma.202212160] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/05/2023] [Indexed: 05/26/2023]
Abstract
Cesium-formamidinium lead iodide perovskite quantum dots (FAx Cs1- x PbI3 PQDs) show high potential for next-generation photovoltaics due to their outstanding optoelectronic properties. However, achieving composition-tunable hybrid PQDs with desirable charge transport remains a significant challenge. Herein, by leveraging an antisolvent-assisted in situ cation exchange of PQDs, homogeneous FAx Cs1- x PbI3 PQDs with controllable stoichiometries and surface ligand chemistry are realized. Meanwhile, the crystallographic stability of PQDs is substantially improved by substituting the cations of the PQDs mediated by surface vacancies. Consequently, PQD solar cell delivers an efficiency of 17.29%, the highest value among the homostructured PQD solar cells. The high photovoltaic performance is attributed to the broadened light harvesting spectra, flattened energy landscape, and rationalized energy levels of highly oriented PQD solids, leading to efficient charge carrier extraction. This work provides a feasible approach for the stoichiometry regulation of PQDs to finely tailor the optoelectronic properties and tolerance factors of PQDs toward high-performing photovoltaics.
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Affiliation(s)
- Donglin Jia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Jingxuan Chen
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Rongshan Zhuang
- Yunnan Key Laboratory for Micro/Nano Materials and Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Yong Hua
- Yunnan Key Laboratory for Micro/Nano Materials and Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
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30
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Carwithen BP, Hopper TR, Ge Z, Mondal N, Wang T, Mazlumian R, Zheng X, Krieg F, Montanarella F, Nedelcu G, Kroll M, Siguan MA, Frost JM, Leo K, Vaynzof Y, Bodnarchuk MI, Kovalenko MV, Bakulin AA. Confinement and Exciton Binding Energy Effects on Hot Carrier Cooling in Lead Halide Perovskite Nanomaterials. ACS NANO 2023; 17:6638-6648. [PMID: 36939330 PMCID: PMC10100565 DOI: 10.1021/acsnano.2c12373] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
The relaxation of the above-gap ("hot") carriers in lead halide perovskites (LHPs) is important for applications in photovoltaics and offers insights into carrier-carrier and carrier-phonon interactions. However, the role of quantum confinement in the hot carrier dynamics of nanosystems is still disputed. Here, we devise a single approach, ultrafast pump-push-probe spectroscopy, to study carrier cooling in six different size-controlled LHP nanomaterials. In cuboidal nanocrystals, we observe only a weak size effect on the cooling dynamics. In contrast, two-dimensional systems show suppression of the hot phonon bottleneck effect common in bulk perovskites. The proposed kinetic model describes the intrinsic and density-dependent cooling times accurately in all studied perovskite systems using only carrier-carrier, carrier-phonon, and excitonic coupling constants. This highlights the impact of exciton formation on carrier cooling and promotes dimensional confinement as a tool for engineering carrier-phonon and carrier-carrier interactions in LHP optoelectronic materials.
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Affiliation(s)
- Ben P. Carwithen
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Thomas R. Hopper
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
- Department
of Materials Science and Engineering, Stanford
University, Stanford, California 94305, United States
| | - Ziyuan Ge
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Navendu Mondal
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Tong Wang
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Rozana Mazlumian
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Xijia Zheng
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Franziska Krieg
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Federico Montanarella
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Georgian Nedelcu
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, Groningen 9747AG, The Netherlands
| | - Martin Kroll
- Center
for
Advancing Electronics Dresden, Technische
Universität Dresden, 01069 Dresden, Germany
- Integrated
Center for Applied Photophysics and Photonic Materials, Technische Universität Dresden, 01187 Dresden, Germany
| | - Miguel Albaladejo Siguan
- Chair
for Emerging Electronic Technologies, Technische
Universität Dresden, 01187 Dresden, Germany
- Leibniz
Institute for Solid State and Materials Research Dresden, Technische Universität Dresden, 01069 Dresden, Germany
| | - Jarvist M. Frost
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
| | - Karl Leo
- Integrated
Center for Applied Photophysics and Photonic Materials, Technische Universität Dresden, 01187 Dresden, Germany
| | - Yana Vaynzof
- Chair
for Emerging Electronic Technologies, Technische
Universität Dresden, 01187 Dresden, Germany
- Leibniz
Institute for Solid State and Materials Research Dresden, Technische Universität Dresden, 01069 Dresden, Germany
| | - Maryna I. Bodnarchuk
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Artem A. Bakulin
- Department
of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, United
Kingdom
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31
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Guggisberg D, Yakunin S, Neff C, Aebli M, Günther D, Kovalenko MV, Dirin DN. Colloidal CsPbX 3 Nanocrystals with Thin Metal Oxide Gel Coatings. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:2827-2834. [PMID: 37063595 PMCID: PMC10100534 DOI: 10.1021/acs.chemmater.2c03562] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Lead halide perovskite (LHP) nanocrystals (NCs) have gathered much attention as light-emitting materials, particularly owing to their excellent color purity, band gap tunability, high photoluminescence quantum yield (PLQY), low cost, and scalable synthesis. To enhance the stability of LHP NCs, bulky strongly bound organic ligands are commonly employed, which counteract the extraction of charge carriers from the NCs and hinder their use as photoconductive materials and photocatalysts. Replacing these ligands with a thin coating is a complex challenge due to the highly dynamic ionic lattice, which is vulnerable to the commonly employed coating precursors and solvents. In this work, we demonstrate thin (<1 nm) metal oxide gel coatings through non-hydrolytic sol-gel reactions. The coated NCs are readily dispersible and highly stable in short-chain alcohols while remaining monodisperse and exhibiting high PLQY (70-90%). We show the successful coating of NCs in a wide range of sizes (5-14 nm) and halide compositions. Alumina-gel-coated NCs were chosen for an in-depth analysis, and the versatility of the approach is demonstrated by employing zirconia- and titania-based coatings. Compact films of the alumina-gel-coated NCs exhibit electronic and excitonic coupling between the NCs, leading to two orders of magnitude longer photoluminescence lifetimes (400-700 ns) compared to NCs in solution or their organically capped counterparts. This makes these NCs highly suited for applications where charge carrier delocalization or extraction is essential for performance.
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Affiliation(s)
- Dominic Guggisberg
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Sergii Yakunin
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Christoph Neff
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
| | - Marcel Aebli
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Detlef Günther
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
| | - Maksym V. Kovalenko
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
- NCCR
Catalysis, Institute of Inorganic Chemistry, Department of Chemistry
and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Dmitry N. Dirin
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
- NCCR
Catalysis, Institute of Inorganic Chemistry, Department of Chemistry
and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
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32
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Jang C, Kim K, Nho HW, Lee SM, Mubarok H, Han JH, Kim H, Lee D, Jang Y, Lee MH, Kwon OH, Kwak SK, Im WB, Song MH, Park J. Synthesis of Thermally Stable and Highly Luminescent Cs 5 Cu 3 Cl 6 I 2 Nanocrystals with Nonlinear Optical Response. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206668. [PMID: 36703517 DOI: 10.1002/smll.202206668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Low-dimensional Cu(I)-based metal halide materials are gaining attention due to their low toxicity, high stability and unique luminescence mechanism, which is mediated by self-trapped excitons (STEs). Among them, Cs5 Cu3 Cl6 I2 , which emits blue light, is a promising candidate for applications as a next-generation blue-emitting material. In this article, an optimized colloidal process to synthesize uniform Cs5 Cu3 Cl6 I2 nanocrystals (NCs) with a superior quantum yield (QY) is proposed. In addition, precise control of the synthesis parameters, enabling anisotropic growth and emission wavelength shifting is demonstrated. The synthesized Cs5 Cu3 Cl6 I2 NCs have an excellent photoluminescence (PL) retention rate, even at high temperature, and exhibit high stability over multiple heating-cooling cycles under ambient conditions. Moreover, under 850-nm femtosecond laser irradiation, the NCs exhibit three-photon absorption (3PA)-induced PL, highlighting the possibility of utilizing their nonlinear optical properties. Such thermally stable and highly luminescent Cs5 Cu3 Cl6 I2 NCs with nonlinear optical properties overcome the limitations of conventional blue-emitting nanomaterials. These findings provide insights into the mechanism of the colloidal synthesis of Cs5 Cu3 Cl6 I2 NCs and a foundation for further research.
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Affiliation(s)
- Changhee Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kangyong Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hak-Won Nho
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Seung Min Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hanif Mubarok
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Joo Hyeong Han
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyeonjung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Dongryeol Lee
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yangpil Jang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Min Hyung Lee
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Oh-Hoon Kwon
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Sang Kyu Kwak
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Won Bin Im
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Myoung Hoon Song
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jongnam Park
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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33
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Dirin DN, Vivani A, Zacharias M, Sekh TV, Cherniukh I, Yakunin S, Bertolotti F, Aebli M, Schaller RD, Wieczorek A, Siol S, Cancellieri C, Jeurgens LPH, Masciocchi N, Guagliardi A, Pedesseau L, Even J, Kovalenko MV, Bodnarchuk MI. Intrinsic Formamidinium Tin Iodide Nanocrystals by Suppressing the Sn(IV) Impurities. NANO LETTERS 2023; 23:1914-1923. [PMID: 36852730 PMCID: PMC9999454 DOI: 10.1021/acs.nanolett.2c04927] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The long search for nontoxic alternatives to lead halide perovskites (LHPs) has shown that some compelling properties of LHPs, such as low effective masses of carriers, can only be attained in their closest Sn(II) and Ge(II) analogues, despite their tendency toward oxidation. Judicious choice of chemistry allowed formamidinium tin iodide (FASnI3) to reach a power conversion efficiency of 14.81% in photovoltaic devices. This progress motivated us to develop a synthesis of colloidal FASnI3 NCs with a concentration of Sn(IV) reduced to an insignificant level and to probe their intrinsic structural and optical properties. Intrinsic FASnI3 NCs exhibit unusually low absorption coefficients of 4 × 103 cm-1 at the first excitonic transition, a 190 meV increase of the band gap as compared to the bulk material, and a lack of excitonic resonances. These features are attributed to a highly disordered lattice, distinct from the bulk FASnI3 as supported by structural characterizations and first-principles calculations.
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Affiliation(s)
- Dmitry N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Anna Vivani
- Dipartimento
di Scienza e Alta Tecnologia & To.Sca.Lab, Università dell’Insubria, 22100 Como, Italy
| | - Marios Zacharias
- Univ
Rennes, INSA Rennes, CNRS, Institut FOTON, Rennes F-35000, France
| | - Taras V. Sekh
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Ihor Cherniukh
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Federica Bertolotti
- Dipartimento
di Scienza e Alta Tecnologia & To.Sca.Lab, Università dell’Insubria, 22100 Como, Italy
| | - Marcel Aebli
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Richard D. Schaller
- Center
for Nanoscale Materials, Argonne National
Laboratory, Lemont, Illinois 60439, United
States
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Alexander Wieczorek
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Sebastian Siol
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Claudia Cancellieri
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Lars P. H. Jeurgens
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Norberto Masciocchi
- Dipartimento
di Scienza e Alta Tecnologia & To.Sca.Lab, Università dell’Insubria, 22100 Como, Italy
| | - Antonietta Guagliardi
- Istituto
di Cristallografia & To.Sca.Lab, Consiglio
Nazionale delle Ricerche, 22100 Como, Italy
| | - Laurent Pedesseau
- Univ
Rennes, INSA Rennes, CNRS, Institut FOTON, Rennes F-35000, France
| | - Jacky Even
- Univ
Rennes, INSA Rennes, CNRS, Institut FOTON, Rennes F-35000, France
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Empa−Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
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34
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Liang FC, Jhuang FC, Fang YH, Benas JS, Chen WC, Yan ZL, Lin WC, Su CJ, Sato Y, Chiba T, Kido J, Kuo CC. Synergistic Effect of Cation Composition Engineering of Hybrid Cs 1-x FA x PbBr 3 Nanocrystals for Self-Healing Electronics Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207617. [PMID: 36353914 DOI: 10.1002/adma.202207617] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Mixed-cation hybrid perovskite nanocrystal (HPNC) with high crystallinity, color purity, and tunable optical bandgap offers a practical pathway toward next-generation displays. Herein, a two-step modified hot-injection combined with cation compositional engineering and surface treatment to synthesize high-purity cesium/formamidinium lead bromide HPNCs(Cs1-x FAx PbBr3 ) is presented. The optimized Cs0.5 FA0.5 PbBr3 light-emitting devices (LEDs) exhibit uniform luminescence of 3500 cd m-2 and a prominent current efficiency of 21.5 cd A-1 . As a proof of concept, a self-healing polymer (SHP) integrated with white LED backlight and laser prototypes exhibited 4 h autonomous self-healing through the synergistic effect of weak reversible imine bonds and stronger H-bonds. First, the SHP-HPNCs-initial and SHP-HPNCs-cut possess high long-term stability and dramatically suppressed lead leakage as low as 0.6 ppm along with a low leakage rate of 1.11 × 10-5 cm2 and 3.36 × 10-5 cm2 even over 6 months in water. Second, the Cs0.5 FA0.5 PbBr3 HPNCs and SHP-induced shattered-repaired perovskite glass substrate show the lowest lasing threshold values of 1.24 and 8.58 µJ cm-2 , respectively. This work provides an integrative and in-depth approach to exploiting SHP with intrinsic and entropic self-healing capabilities combined with HPNCs to develop robust and reliable soft-electronic backlight and laser applications.
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Affiliation(s)
- Fang-Cheng Liang
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Fu-Cheng Jhuang
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Yu-Han Fang
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Jean-Sebastien Benas
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Wei-Cheng Chen
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Zhen-Li Yan
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Wei-Chun Lin
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
| | - Chun-Jen Su
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu, 30076, Taiwan
| | - Yuki Sato
- Graduate School of Organic Materials Science, Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, 992-8510, Japan
| | - Takayuki Chiba
- Graduate School of Organic Materials Science, Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, 992-8510, Japan
| | - Junji Kido
- Graduate School of Organic Materials Science, Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, 992-8510, Japan
| | - Chi-Ching Kuo
- Institute of Organic and Polymeric Materials, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road., Taipei, 10608, Taiwan
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35
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Sun W, Yun R, Liu Y, Zhang X, Yuan M, Zhang L, Li X. Ligands in Lead Halide Perovskite Nanocrystals: From Synthesis to Optoelectronic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205950. [PMID: 36515335 DOI: 10.1002/smll.202205950] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/13/2022] [Indexed: 06/17/2023]
Abstract
Ligands are indispensable for perovskite nanocrystals (NCs) throughout the whole lifetime, as they not only play key roles in the controllable synthesis of NCs with different sizes and shapes, but also act as capping shell that affects optical properties and electrical coupling of NCs. Establishing a systematic understanding of the relationship between ligands and perovskite NCs is significant to enable many potential applications of NCs. This review mainly focuses on the influence of ligands on perovskite NCs. First of all, the ligands-dominated size and shape control of NCs is discussed. Whereafter, the surface defects of NCs and the bonding between ligands and perovskite NCs are classified, and corresponding post-treatment of surface defects via ligands is also summarized. Furthermore, advances in engineering the ligands towards the high performance of optoelectronic devices based on perovskite NCs, including photodetector, solar cell, light emitting diode (LED), and laser, and finally to potential challenges are also discussed.
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Affiliation(s)
- Wenda Sun
- Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
| | - Rui Yun
- Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
| | - Yuling Liu
- Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
| | - Xiaodan Zhang
- Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300071, China
| | - Libing Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, Tianjin University, Tianjin, 300072, China
| | - Xiyan Li
- Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
- Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
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Zhang X, Huang H, Jin L, Wen C, Zhao Q, Zhao C, Guo J, Cheng C, Wang H, Zhang L, Li Y, Maung Maung Y, Yuan J, Ma W. Ligand-Assisted Coupling Manipulation for Efficient and Stable FAPbI 3 Colloidal Quantum Dot Solar Cells. Angew Chem Int Ed Engl 2023; 62:e202214241. [PMID: 36357341 DOI: 10.1002/anie.202214241] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Indexed: 11/12/2022]
Abstract
For emerging perovskite quantum dots (QDs), understanding the surface features and their impact on the materials and devices is becoming increasingly urgent. In this family, hybrid FAPbI3 QDs (FA: formamidium) exhibit higher ambient stability, near-infrared absorption and sufficient carrier lifetime. However, hybrid QDs suffer from difficulty in modulating surface ligand, which is essential for constructing conductive QD arrays for photovoltaics. Herein, assisted by an ionic liquid formamidine thiocyanate, we report a facile surface reconfiguration methodology to modulate surface and manipulate electronic coupling of FAPbI3 QDs, which is exploited to enhance charge transport for fabricating high-quality QD arrays and photovoltaic devices. Finally, a record-high efficiency approaching 15 % is achieved for FAPbI3 QD solar cells, and they retain over 80 % of the initial efficiency after aging in ambient environment (20-30 % humidity, 25 °C) for over 600 h.
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Affiliation(s)
- Xuliang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Hehe Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Lujie Jin
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Chao Wen
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Qian Zhao
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Chenyu Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Junjun Guo
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Chen Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Hongshuai Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Liang Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Yin Maung Maung
- Department of Physics, University of Yangon, Pyay Road, Yangon, 11181, Myanmar
| | - Jianyu Yuan
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Wanli Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China.,Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
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37
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Zhang H, Wu C, Xu W, Fu H. Compact-Type Quasi-2D Perovskite Based on Two Conventional 3D Perovskites. NANO LETTERS 2023; 23:252-258. [PMID: 36562880 DOI: 10.1021/acs.nanolett.2c04238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Quasi-2D perovskites are natural quantum well (QW) structures composed of insulating organic layers inserted between conducting [An-1PbnX3n+1]2- slabs. The presence of the bulky organic layer improves the stability but meanwhile sacrifices carrier transport performance. By utilizing two A-site cations of formamidinium (FA+) and cesium (Cs+), we synthesize unique compact-type quasi-2D perovskites CsPbBr3@FABr. Instead of the bulky organic cations, the FA+ cation was employed to work as interlayer "spacer", while the smaller Cs+ cation was chosen to occupy perovskite cages. Transient absorption reveals an energy transfer from small-n-value QWs to large-n-value QWs, enabling a photoluminescence quantum yield (PLQY) of 36.1%. After further promoting the formation of middle-n-value QWs, the homogeneous QW distribution provides a complete energy cascade to access more efficient energy transfer, leading to significant PLQY raise to 70.1%. We break the shackles to report the first case of compact-type quasi-2D perovskites, providing new guidelines for designing high-performance perovskite materials for optoelectronic devices.
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Affiliation(s)
- Haihua Zhang
- Institute of Molecule Plus, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Chuang Wu
- Institute of Molecule Plus, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Wenbao Xu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Hongbing Fu
- Institute of Molecule Plus, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
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38
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Banerjee S, Bera S, Pradhan N. Chemically Sculpturing the Facets of CsPbBr 3 Perovskite Platelet Nanocrystals. ACS NANO 2023; 17:678-686. [PMID: 36577129 DOI: 10.1021/acsnano.2c10107] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The facet chemistry of lead halide perovskite nanocrystals is critically important for determining their shape and interface ligand binding. In colloidal nanocrystals, these are mostly controlled by adopting specific synthetic strategies with a selection of the appropriate reactants. However, using selected ligands, the surface of preformed nanocrystals can be reconstructed without altering the crystal phase and lattice structure of their core. This has been shown here for hexagonal-shaped orthorhombic CsPbBr3 platelet nanocrystals. When oleylammonium bromide was added to these postsynthesized platelets, all six edges and two planar facets are transformed from flat to wavy structures. With a variation in concentration, the crest-to-crest distance of these wavy platelets are also tuned. These became possible because of the oleylammonium ions, which changed the {200}, {012} and {020} facets of orthorhombic phase of CsPbBr3 to the more compatible {110} and {002} facets simply by surface atom dissolution. This was also observed for multisegmented platelets having multiple junctions and even for platelets having a size of more than 200 nm. While shape modulations in ionic halide perovskite nanocrystals still face synthetic challenges, these results of surface reconstruction provide strong evidence of the possibility of sculpturing surface facets and shape changes in these nanostructures.
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Affiliation(s)
- Souvik Banerjee
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Suman Bera
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Narayan Pradhan
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
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39
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Lim S, Han S, Kim D, Min J, Choi J, Park T. Key Factors Affecting the Stability of CsPbI 3 Perovskite Quantum Dot Solar Cells: A Comprehensive Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2203430. [PMID: 35700966 DOI: 10.1002/adma.202203430] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The power conversion efficiency of CsPbI3 perovskite quantum dot (PQD) solar cells shows increase from 10.77% to 16.2% in a short period owing to advances in material and device design for solar cells. However, the device stability of CsPbI3 PQD solar cells remains poor in ambient conditions, which requires an in-depth understanding of the degradation mechanisms of CsPbI3 PQDs solar cells in terms of both inherent material properties and device characteristics. Along with this analysis, advanced strategies to overcome poor device stability must be conceived. In this review, fundamental mechanisms that cause the degradation of CsPbI3 PQD solar cells are discussed from the material property and device viewpoints. In addition, based on detailed insights into degradation mechanisms in CsPbI3 PQD solar cells, various strategies are introduced to improve the stability of CsPbI3 PQD solar cells. Finally, future perspectives and challenges are presented to achieve highly durable CsPbI3 PQD solar cells. The investigation of the degradation mechanisms and the stability enhancement strategies can pave the way for the commercialization of CsPbI3 PQD solar cells.
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Affiliation(s)
- Seyeong Lim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sanghun Han
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Dohyun Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jihyun Min
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jongmin Choi
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Taiho Park
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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40
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Ding S, Hao M, Fu C, Lin T, Baktash A, Chen P, He D, Zhang C, Chen W, Whittaker AK, Bai Y, Wang L. In Situ Bonding Regulation of Surface Ligands for Efficient and Stable FAPbI 3 Quantum Dot Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204476. [PMID: 36316248 PMCID: PMC9762318 DOI: 10.1002/advs.202204476] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Quantum dots (QDs) of formamidinium lead triiodide (FAPbI3 ) perovskite hold great potential, outperforming their inorganic counterparts in terms of phase stability and carrier lifetime, for high-performance solar cells. However, the highly dynamic nature of FAPbI3 QDs, which mainly originates from the proton exchange between oleic acid and oleylamine (OAm) surface ligands, is a key hurdle that impedes the fabrication of high-efficiency solar cells. To tackle such an issue, here, protonated-OAm in situ to strengthen the ligand binding at the surface of FAPbI3 QDs, which can effectively suppress the defect formation during QD synthesis and purification processes is selectively introduced. In addition, by forming a halide-rich surface environment, the ligand density in a broader range for FAPbI3 QDs without compromising their structural integrity, which significantly improves their optoelectronic properties can be modulated. As a result, the power conversion efficiency of FAPbI3 QD solar cells (QDSCs) is enhanced from 7.4% to 13.8%, a record for FAPbI3 QDSCs. Furthermore, the suppressed proton exchange and reduced surface defects in FAPbI3 QDs also enhance the stability of QDSCs, which retain 80% of the initial efficiency upon exposure to ambient air for 3000 hours.
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Affiliation(s)
- Shanshan Ding
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Mengmeng Hao
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Changkui Fu
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Tongen Lin
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Ardeshir Baktash
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Peng Chen
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Dongxu He
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Chengxi Zhang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Weijian Chen
- Australian Centre for Advanced PhotovoltaicsSchool of Photovoltaics and Renewable Energy EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
| | - Yang Bai
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055P. R. China
- Shenzhen Key Laboratory of Energy Materials for Carbon NeutralityShenzhen518055P. R. China
| | - Lianzhou Wang
- Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
- School of Chemical EngineeringThe University of QueenslandSt LuciaBrisbaneQLD4072Australia
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41
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Bera SK, Bera S, Shrivastava M, Pradhan N, Adarsh KV. Facet Engineering for Amplified Spontaneous Emission in Metal Halide Perovskite Nanocrystals. NANO LETTERS 2022; 22:8908-8916. [PMID: 36318695 DOI: 10.1021/acs.nanolett.2c02982] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Auger recombination and thermalization time are detrimental in reducing the gain threshold of optically pumped semiconductor nanocrystal (NC) lasers for future on-chip nanophotonic devices. Here, we report the design strategy of facet engineering to reduce the gain threshold of amplified spontaneous emission by manyfold in NCs of the same concentration and edge length. We achieved this hallmark result by controlling the Auger recombination rates dominated by processes involving NC volume and thermalization time to the emitting states by optimizing the number of facets from 6 (cube) to 12 (rhombic dodecahedron) and 26 (rhombicuboctahedrons) in CsPbBr3 NCs. For instance, we demonstrate a 2-fold reduction in Auger recombination rates and thermalization time with increased number of facets. The gain threshold can be further reduced ∼50% by decreasing the sample temperature to 4 K. Our systematic studies offer a new method to reduce the gain threshold that ultimately forms the basis of nanolasers.
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Affiliation(s)
- Santu K Bera
- Department of Physics, Indian Institute of Science Education and Research, Bhopal462066, India
| | - Suman Bera
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata700032, India
| | - Megha Shrivastava
- Department of Physics, Indian Institute of Science Education and Research, Bhopal462066, India
| | - Narayan Pradhan
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata700032, India
| | - K V Adarsh
- Department of Physics, Indian Institute of Science Education and Research, Bhopal462066, India
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42
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Mu Y, He Z, Wang K, Pi X, Zhou S. Recent progress and future prospects on halide perovskite nanocrystals for optoelectronics and beyond. iScience 2022; 25:105371. [PMID: 36345343 PMCID: PMC9636552 DOI: 10.1016/j.isci.2022.105371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
As an emerging new class of semiconductor nanomaterials, halide perovskite (ABX3, X = Cl, Br, or I) nanocrystals (NCs) are attracting increasing attention owing to their great potential in optoelectronics and beyond. This field has experienced rapid breakthroughs over the past few years. In this comprehensive review, halide perovskite NCs that are either freestanding or embedded in a matrix (e.g., perovskites, metal-organic frameworks, glass) will be discussed. We will summarize recent progress on the synthesis and post-synthesis methods of halide perovskite NCs. Characterizations of halide perovskite NCs by using a variety of techniques will be present. Tremendous efforts to tailor the optical and electronic properties of halide perovskite NCs in terms of manipulating their size, surface, and component will be highlighted. Physical insights gained on the unique optical and charge-carrier transport properties will be provided. Importantly, the growing potential of halide perovskite NCs for advancing optoelectronic applications and beyond including light-emitting devices (LEDs), solar cells, scintillators and X-ray imaging, lasers, thin-film transistors (TFTs), artificial synapses, and light communication will be extensively discussed, along with prospecting their development in the future.
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Affiliation(s)
- Yuncheng Mu
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Ziyu He
- Department of Material Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK
| | - Kun Wang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Xiaodong Pi
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Advanced Semiconductors and Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices, Hangzhou Innovation Center, Zhejiang University, Hangzhou, Zhejiang 311215, China
| | - Shu Zhou
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, China
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Yao J, Xu L, Wang S, Yang Z, Song J. Recent progress of single-halide perovskite nanocrystals for advanced displays. NANOSCALE 2022; 14:13990-14007. [PMID: 36125019 DOI: 10.1039/d2nr03872b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Light-emitting diodes based on lead halide perovskite nanocrystals (LHP NCs) have shown an astonishing increase in efficiency in just several years of academic research, reaching high external quantum efficiencies exceeding 20%. The extensive color-tunability and narrow emission bandwidth of LHP NCs, in particular, are of great importance in the creation of the next generation of ultra-high-definition displays, as defined by the Rec. 2020 standard recommendation. In fact, whereas the colour of LHP NCs can be easily tuned by the compositions of halogens, the ion migration in mixed-halide perovskites under the electric field will seriously affect the spectral stability and operational lifetimes of perovskite light-emitting diodes (PeLEDs). Therefore, it is essential to realize efficient colour-saturated PeLEDs based on single-halide perovskite NCs. In this review, we focus on the recent progress in LHP NC-based PeLEDs and highlight the strategy of tuning the spectral emission based on quantum confinement or cation alloying/doping in single-halide perovskite NCs. Finally, we will give an outlook on future research avenues for preparing high-efficiency pure green, red and blue PeLEDs based on single-halide perovskite NCs.
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Affiliation(s)
- Jisong Yao
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Leimeng Xu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Shalong Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Zhi Yang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Jizhong Song
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
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Bhatia H, Ghosh B, Debroye E. Colloidal FAPbBr 3 perovskite nanocrystals for light emission: what's going on? JOURNAL OF MATERIALS CHEMISTRY. C 2022; 10:13437-13461. [PMID: 36324302 PMCID: PMC9521414 DOI: 10.1039/d2tc01373h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/06/2022] [Indexed: 06/16/2023]
Abstract
Semiconducting nanomaterials have been widely explored in diverse optoelectronic applications. Colloidal lead halide perovskite nanocrystals (NCs) have recently been an excellent addition to the field of nanomaterials, promising an enticing building block in the field of light emission. In addition to the notable optoelectronic properties of perovskites, the colloidal NCs exhibit unique size-dependent optical properties due to the quantum size effect, which makes them highly attractive for light-emitting diodes (LEDs). In the past few years, perovskite-based LEDs (PeLEDs) have demonstrated a meteoritic rise in their external quantum efficiency (EQE) values, reaching over 20% so far. Among various halide perovskite compositions, FAPbBr3 and its variants remain one of the most interesting and sought-after compounds for green light emission. This review focuses on recent progress in the design and synthesis protocols of colloidal FAPbBr3 NCs and the emerging concepts in tailoring their surface chemistry. The structural and physicochemical features of lead halide perovskites along with a comprehensive discussion on their defect-tolerant properties are briefly outlined. Later, the prevalent synthesis, ligand, and compositional engineering strategies to boost the stability and photoluminescence quantum yield (PLQY) of FAPbBr3 NCs are extensively discussed. Finally, the fundamental concepts and recent progress on FAPbBr3-based LEDs, followed by a discussion of the challenges and prospects that are on the table for this enticing class of perovskites, are reviewed.
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Affiliation(s)
- Harshita Bhatia
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Biplab Ghosh
- cMACS, Department of Microbial and Molecular Systems, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Elke Debroye
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
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45
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Das R, Patra A, Dutta SK, Shyamal S, Pradhan N. Facets-Directed Epitaxially Grown Lead Halide Perovskite-Sulfobromide Nanocrystal Heterostructures and Their Improved Photocatalytic Activity. J Am Chem Soc 2022; 144:18629-18641. [PMID: 36174102 DOI: 10.1021/jacs.2c08639] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lead halide perovskite nanocrystal heterostructures have been extensively studied in the recent past for improving their photogenerated charge carriers mobility. However, most of such heterostructures are formed with random connections without having strong evidence of epitaxial relation. Perovskite-chalcohalides are the first in this category, where all-inorganic heterostructures are formed with epitaxial growth. Going beyond one facet, herein, different polyhedral nanocrystals of CsPbBr3 are explored for facet-selective secondary epitaxial sulfobromide growths. Following a decoupled synthesis process, the heterojunctions are selectively established along {110} as well as {200} facets of 26-faceted rhombicuboctahedrons, the {110} facets of armed hexapods, and the {002} facets of 12-faceted dodecahedron nanocrystals of orthorhombic CsPbBr3. Lattice matching induced these epitaxial growths, and their heterojunctions have been extensively studied with electron microscopic imaging. Unfortunately, these heterostructures did not retain the intense host emission because of their indirect band structures, but such combinations are found to be ideal for promoting photocatalytic CO2 reduction. The pseudo-Type-II combination helped here in the successful movement of charge carriers and also improved the rate of catalysis. These results suggest that facet-selective all-inorganic perovskite heterostructures can be epitaxially grown and this could help in improving their catalytic activities.
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Affiliation(s)
- Rajdeep Das
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Avijit Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Sumit Kumar Dutta
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Sanjib Shyamal
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Narayan Pradhan
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
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Fan W, Gao Q, Mei X, Jia D, Chen J, Qiu J, Zhou Q, Zhang X. Ligand exchange engineering of FAPbI 3 perovskite quantum dots for solar cells. FRONTIERS OF OPTOELECTRONICS 2022; 15:39. [PMID: 36637602 PMCID: PMC9756204 DOI: 10.1007/s12200-022-00038-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/29/2022] [Indexed: 06/17/2023]
Abstract
Formamidinium lead triiodide (FAPbI3) perovskite quantum dots (PQDs) show great advantages in photovoltaic applications due to their ideal bandgap energy, high stability and solution processability. The anti-solvent used for the post-treatment of FAPbI3 PQD solid films significantly affects the surface chemistry of the PQDs, and thus the vacancies caused by surface ligand removal inhibit the optoelectronic properties and stability of PQDs. Here, we study the effects of different anti-solvents with different polarities on FAPbI3 PQDs and select a series of organic molecules for surface passivation of PQDs. The results show that methyl acetate could effectively remove surface ligands from the PQD surface without destroying its crystal structure during the post-treatment. The benzamidine hydrochloride (PhFACl) applied as short ligands of PQDs during the post-treatment could fill the A-site and X-site vacancies of PQDs and thus improve the electronic coupling of PQDs. Finally, the PhFACl-based PQD solar cell (PQDSC) achieves a power conversion efficiency of 6.4%, compared to that of 4.63% for the conventional PQDSC. This work provides a reference for insights into the surface passivation of PQDs and the improvement in device performance of PQDSCs.
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Affiliation(s)
- Wentao Fan
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Qiyuan Gao
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Xinyi Mei
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Donglin Jia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Jingxuan Chen
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Junming Qiu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Qisen Zhou
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
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Otero‐Martínez C, Imran M, Schrenker NJ, Ye J, Ji K, Rao A, Stranks SD, Hoye RLZ, Bals S, Manna L, Pérez‐Juste J, Polavarapu L. Fast A‐Site Cation Cross‐Exchange at Room Temperature: Single‐to Double‐ and Triple‐Cation Halide Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202205617. [PMID: 35748492 PMCID: PMC9540746 DOI: 10.1002/anie.202205617] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Indexed: 11/20/2022]
Abstract
We report here fast A‐site cation cross‐exchange between APbX3 perovskite nanocrystals (NCs) made of different A‐cations (Cs (cesium), FA (formamidinium), and MA (methylammonium)) at room temperature. Surprisingly, the A‐cation cross‐exchange proceeds as fast as the halide (X=Cl, Br, or I) exchange with the help of free A‐oleate complexes present in the freshly prepared colloidal perovskite NC solutions. This enabled the preparation of double (MACs, MAFA, CsFA)‐ and triple (MACsFA)‐cation perovskite NCs with an optical band gap that is finely tunable by their A‐site composition. The optical spectroscopy together with structural analysis using XRD and atomically resolved high‐angle annular dark‐field scanning transmission electron microscopy (HAADF‐STEM) and integrated differential phase contrast (iDPC) STEM indicates the homogeneous distribution of different cations in the mixed perovskite NC lattice. Unlike halide ions, the A‐cations do not phase‐segregate under light illumination.
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Affiliation(s)
- Clara Otero‐Martínez
- Department of Physical Chemistry, CINBIO Universidade de Vigo, Materials Chemistry and Physics Group Campus Universitario As Lagoas, Marcosende 36310 Vigo Spain
- Department of Physical Chemistry, CINBIO Universidade de Vigo Campus Universitario As Lagoas, Marcosende 36310 Vigo Spain
| | - Muhammad Imran
- Nanochemistry Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
| | - Nadine J. Schrenker
- EMAT and Nanolab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Junzhi Ye
- Cavendish Laboratory University of Cambridge 19 JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Kangyu Ji
- Cavendish Laboratory University of Cambridge 19 JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Akshay Rao
- Cavendish Laboratory University of Cambridge 19 JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Samuel D. Stranks
- Cavendish Laboratory University of Cambridge 19 JJ Thomson Avenue Cambridge CB3 0HE UK
- Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge CB3 0AS UK
| | - Robert L. Z. Hoye
- Department of Materials Imperial College London Exhibition Road London SW7 2AZ UK
| | - Sara Bals
- EMAT and Nanolab Center of Excellence University of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
| | - Liberato Manna
- Nanochemistry Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
| | - Jorge Pérez‐Juste
- Department of Physical Chemistry, CINBIO Universidade de Vigo Campus Universitario As Lagoas, Marcosende 36310 Vigo Spain
| | - Lakshminarayana Polavarapu
- Department of Physical Chemistry, CINBIO Universidade de Vigo, Materials Chemistry and Physics Group Campus Universitario As Lagoas, Marcosende 36310 Vigo Spain
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Wang Y, Zhao H, Piotrowski M, Han X, Ge Z, Dong L, Wang C, Pinisetty SK, Balguri PK, Bandela AK, Thumu U. Cesium Lead Iodide Perovskites: Optically Active Crystal Phase Stability to Surface Engineering. MICROMACHINES 2022; 13:mi13081318. [PMID: 36014240 PMCID: PMC9414704 DOI: 10.3390/mi13081318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/07/2022] [Accepted: 08/10/2022] [Indexed: 05/04/2023]
Abstract
Among perovskites, the research on cesium lead iodides (CsPbI3) has attracted a large research community, owing to their all-inorganic nature and promising solar cell performance. Typically, the CsPbI3 solar cell devices are prepared at various heterojunctions, and working at fluctuating temperatures raises questions on the material stability-related performance of such devices. The fundamental studies reveal that their poor stability is due to a lower side deviation from Goldschmidt's tolerance factor, causing weak chemical interactions within the crystal lattice. In the case of organic-inorganic hybrid perovskites, where their stability is related to the inherent chemical nature of the organic cations, which cannot be manipulated to improve the stability drastically whereas the stability of CsPbI3 is related to surface and lattice engineering. Thus, the challenges posed by CsPbI3 could be overcome by engineering the surface and inside the CsPbI3 crystal lattice. A few solutions have been proposed, including controlled crystal sizes, surface modifications, and lattice engineering. Various research groups have been working on these aspects and had accumulated a rich understanding of these materials. In this review, at first, we survey the fundamental aspects of CsPbI3 polymorphs structure, highlighting the superiority of CsPbI3 over other halide systems, stability, the factors (temperature, polarity, and size influence) leading to their phase transformations, and electronic band structure along with the important property of the defect tolerance nature. Fortunately, the factors stabilizing the most effective phases are achieved through a size reduction and the efficient surface passivation on the delicate CsPbI3 nanocrystal surfaces. In the following section, we have provided the up-to-date surface passivating methods to suppress the non-radiative process for near-unity photoluminescence quantum yield, while maintaining their optically active phases, especially through molecular links (ligands, polymers, zwitterions, polymers) and inorganic halides. We have also provided recent advances to the efficient synthetic protocols for optically active CsPbI3 NC phases to use readily for solar cell applications. The nanocrystal purification techniques are challenging and had a significant effect on the device performances. In part, we summarized the CsPbI3-related solar cell device performances with respect to the device fabrication methods. At the end, we provide a brief outlook on the view of surface and lattice engineering in CsPbI3 NCs for advancing the enhanced stability which is crucial for superior optical and light applications.
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Affiliation(s)
- Yixi Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Hairong Zhao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Marek Piotrowski
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiao Han
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zhongsheng Ge
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Lizhuang Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chengjie Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sowjanya Krishna Pinisetty
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Praveen Kumar Balguri
- Department of Aeronautical Engineering, Institute of Aeronautical Engineering, Hyderabad 500043, India
| | - Anil Kumar Bandela
- Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- Correspondence: (A.K.B.); (U.T.)
| | - Udayabhaskararao Thumu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Correspondence: (A.K.B.); (U.T.)
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49
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Das S, Samanta A. On direct synthesis of high quality APbX 3 (A = Cs +, MA + and FA +; X = Cl -, Br - and I -) nanocrystals following a generic approach. NANOSCALE 2022; 14:9349-9358. [PMID: 35726794 DOI: 10.1039/d2nr01305c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct synthesis of APbX3 [A = Cs+, methylammonium (MA+) or formamidinium (FA+) and X = Cl-, Br- or I-] perovskite nanocrystals (NCs) following a generic approach is a challenging task even today. Motivated by our recent success in obtaining directly high-quality red/NIR-emitting APbI3 NCs employing 1,3-diiodo-5,5-dimethylhydantoin (DIDMH) as an iodide precursor, we explore here whether violet/green-emitting APbCl3 and APbBr3 NCs can also be obtained using the chloro- and bromo-analog of DIDMH keeping in mind that a positive outcome will provide the generic protocol for direct synthesis of all APbX3 NCs using similar halide precursors. It is shown that green-emitting APbBr3 NCs with near-unity PLQY and violet-emitting CsPbCl3 NCs with an impressive PLQY of ∼70%, mixed-halide NCs, CsPb(Cl/Br)3 and CsPb(Br/I)3, emitting in the blue and yellow-orange region with PLQYs of 87-95% and 68-98%, respectively can indeed be obtained employing the bromo- and chloro-analog of DIDMH. These NCs exhibit remarkable stability under different conditions including the polar environment. Femtosecond pump-probe studies show no ultrafast carrier trapping in these systems. The key elements of the halide precursors that facilitated the synthesis and the factors contributing to the excellent characteristics of the NCs are determined by careful analysis of the data. The results are of great significance because a direct method of obtaining highly luminescent and stable APbX3 NCs (except violet-emitting hybrid NCs) is eventually identified and the work provides valuable insight into the selection of appropriate halide precursors for the development of superior systems.
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Affiliation(s)
- Somnath Das
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
| | - Anunay Samanta
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
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50
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Tountas M, Soultati A, Armadorou KK, Ladomenou K, Landrou G, Verykios A, Skoulikidou MC, Panagiotakis S, Fillipatos PP, Yannakopoulou K, Chroneos A, Palilis LC, Yusoff ARBM, Coutsolelos AG, Argitis P, Vasilopoulou M. Core–shell carbon-polymer quantum dot passivation for near infrared perovskite light emitting diodes. JOURNAL OF PHYSICS: PHOTONICS 2022; 4:034007. [DOI: 10.1088/2515-7647/ac79e9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
High-performance perovskite light-emitting diodes (PeLEDs) require a high quality perovskite emitter and appropriate charge transport layers to facilitate charge injection and transport within the device. Solution-processed n-type metal oxides represent a judicious choice for the electron transport layer (ETL); however, they do not always present surface properties and energetics compatible with the perovskite emitter. Moreover, the emitter itself exhibits poor nanomorphology and defect traps that compromise the device performance. Here, we modulate the surface properties and interface energetics between the tin oxide (SnO2) ETL with the perovskite emitter by using an amino functionalized difluoro{2-[1-(3,5-dimethyl-2H-pyrrol-2-ylidene-N)ethyl]-3,5-dimethyl-1H-pyrrolato-N}boron compound and passivate the defects present in the perovskite matrix with carbon-polymer core–shell quantum dots inserted into the perovskite precursor. Both these approaches synergistically improve the perovskite layer nanomorphology and enhance the radiative recombination. These properties resulted in the fabrication of near-infrared PeLEDs based on formamidinium lead iodide (FAPbI3) with a high radiance of 92 W sr−1 m−2, an external quantum efficiency (EQE) of 14%, reduced efficiency roll-off and prolonged lifetime. In particular, the modified device retained 80% of the initial EQE (T80) for 33 h compared to 6 h of the reference cell.
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