1
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Zhang X, Cui Y, Ye S, Lin Z, Li Y. Highly efficient deep-blue emitting CsPbBr 3 nanoplatelets synthesized via surface ligand-mediated strategy. J Colloid Interface Sci 2024; 668:68-76. [PMID: 38669997 DOI: 10.1016/j.jcis.2024.03.202] [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: 12/12/2023] [Revised: 03/20/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024]
Abstract
Two-dimensional (2D) CsPbBr3 nanoplatelets (NPLs) have attracted great attention as one of promising semiconductor nanomaterials due to their large exciton binding energy and narrow emission spectra. However, the labile ionic and weakly bound surfaces of deep-blue emitting CsPbBr3 NPLs with wide bandgap result in their colloidal instability, thus degrading their optical properties. It is challenging to obtain deep-blue emitting CsPbBr3 NPLs with excellent optical properties. In this study, high-quality blue-emitting CsPbBr3 NPLs with tunable thickness were prepared adopting the DBSA-mediated confinement effect based on the hot-injection method. Thanks to the coordination interaction of - SO3- of DBSA ligand and the Pb2+ on the surface of the CsPbBr3 NPLs, as well as the effective passivation of Br vacancy defects on the surface of NPLs by OAm-Br, the obtained pure-blue CsPbBr3 NPLs and deep-blue CsPbBr3 NPLs show high photoluminescence quantum yield (PLQY) of 92 % and 81.2 %, respectively. To the best of our knowledge, this is the highest PLQY recorded for deep-blue emitting CsPbBr3 NPLs with two monolayers [PbBr6]4- octahedra. Furthermore, the agglomeration of CsPbBr3 NPLs due to ligand loss induced by moisture, oxygen, and irradiation was also suppressed by the dual passivation effect of DBSA and OAm-Br. Our work provided a new approach to developing high-performance and stable deep-blue emitting CsPbBr3 perovskite nanoplatelets.
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Affiliation(s)
- Xue Zhang
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanyu Cui
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Siyuan Ye
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhuohan Lin
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yan Li
- Key Laboratory for Advanced Materials, Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
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2
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Zhang M, Zhang J, Gu L, Su Q, Qiang P, Yang Y, Ding S, Yao T, Zhang X, Du G, Xu B, Wang H. Ultranarrow Deep-Blue Luminescence of Perovskite Nanocrystals by A-Site Cation Control. ACS APPLIED MATERIALS & INTERFACES 2024; 16:31524-31533. [PMID: 38841741 DOI: 10.1021/acsami.4c06705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Metal-halide perovskite nanocrystals (NCs) are one of the most promising emitters for the application of display and nanolight sources. The full width at half-maximum (FWHM) of photoluminescence (PL) emission is essential for color purity, which however remains a difficulty to further reduce the FWHM of the perovskite NCs at room temperature. Here, we show the quasi-sphere perovskite NCs with narrow PL emission at a deep-blue wavelength of ∼430 nm; its PL FWHM reaches ∼11 nm at room temperature, owing to the monodispersion in size distribution as well as the symmetric quasi-sphere morphology of NCs releasing the fine structure splitting-induced inhomogeneous broadening. Through regulating A cations with respect to the ratio of FA (or MA)-to-Cs and Cs-to-Pb, the PL emission of the NCs could be tuned from ∼505 to ∼430 nm combined with varied morphologies from large cube to small quasi-sphere. Such spectroscopic and morphological discrepancies are supposed to be attributed to the different crystalline kinetics that is strongly dependent on the synthetic condition. To be specific, in the case of increasing FA (or MA)-to-Cs, the growth rate of CsPbBr3 and FAPbBr3 (or MAPbBr3) perovskites is determined by the reactivity of transient species, while in the case of decreasing the Cs-to-Pb ratio, the growth rate of perovskites is slowed down by the serious reduction of Cs+ in the precursor. This study provides an effective strategy to adjust the emission across from green to deep-blue color and promotes the perovskite NCs with a narrow FWHM, and tunable PL emission facilitates in application of optoelectronic devices.
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Affiliation(s)
- Miao Zhang
- Materials Institute of Atomic and Molecular Science, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jingyun Zhang
- School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Lei Gu
- School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | | | - Pengpeng Qiang
- School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yingjun Yang
- Materials Institute of Atomic and Molecular Science, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Shuakai Ding
- Materials Institute of Atomic and Molecular Science, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tanxin Yao
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi'an 710072, China
| | - Xiuhai Zhang
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi'an 710072, China
| | - Gaohui Du
- Materials Institute of Atomic and Molecular Science, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Bingshe Xu
- Materials Institute of Atomic and Molecular Science, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030000, China
| | - Hongyue Wang
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi'an 710072, China
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3
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Peng X, Zhang J, Xiao P. Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface-Modified Nanofillers for Enhanced Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2400178. [PMID: 38843462 DOI: 10.1002/adma.202400178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/08/2024] [Indexed: 06/28/2024]
Abstract
The incorporation of functionalized nanofillers into polymers via photopolymerization approach has gained significant attention in recent years due to the unique properties of the resulting composite materials. Surface modification of nanofillers plays a crucial role in their compatibility and polymerization behavior within the polymer matrix during photopolymerization. This review focuses on the recent developments in surface modification of various nanofillers, enabling their integration into polymer systems through photopolymerization. The review discusses the key aspects of surface modification of nanofillers, including the selection of suitable surface modifiers, such as photoinitiators and polymerizable groups, as well as the optimization of modification conditions to achieve desired surface properties. The influence of surface modification on the interfacial interactions between nanofillers and the polymer matrix is also explored, as it directly impacts the final properties of the nanocomposites. Furthermore, the review highlights the applications of nanocomposites prepared by photopolymerization, such as sensors, gas separation membranes, purification systems, optical devices, and biomedical materials. By providing a comprehensive overview of the surface modification strategies and their impact on the photopolymerization process and the resulting nanocomposite properties, this review aims to inspire new research directions and innovative ideas in the development of high-performance polymer nanocomposites for diverse applications.
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Affiliation(s)
- Xiaotong Peng
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
| | - Jing Zhang
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Pu Xiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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4
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Jiang N, Ma G, Song D, Qiao B, Liang Z, Xu Z, Wageh S, Al-Ghamdi A, Zhao S. Defects in lead halide perovskite light-emitting diodes under electric field: from behavior to passivation strategies. NANOSCALE 2024; 16:3838-3880. [PMID: 38329288 DOI: 10.1039/d3nr06547b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Lead halide perovskites (LHPs) are emerging semiconductor materials for light-emitting diodes (LEDs) owing to their unique structure and superior optoelectronic properties. However, defects that initiate degradation of LHPs through external stimuli and prompt internal ion migration at the interfaces remain a significant challenge. The electric field (EF), which is a fundamental driving force in LED operation, complicates the role of these defects in the physical and chemical properties of LHPs. A deeper understanding of EF-induced defect behavior is crucial for optimizing the LED performance. In this review, the origins and characterization of defects are explored, indicating the influence of EF-induced defect dynamics on LED performance and stability. A comprehensive overview of recent defect passivation approaches for LHP bulk films and nanocrystals (NCs) is also provided. Given the ubiquity of EF, a summary of the EF-induced defect behavior can enhance the performance of perovskite LEDs and related optoelectronic devices.
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Affiliation(s)
- Na Jiang
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Guoquan Ma
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Dandan Song
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Bo Qiao
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Zhiqin Liang
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Zheng Xu
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Swelm Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ahmed Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Suling Zhao
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing, 100044, China.
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing, 100044, China
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5
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Ferreira RAS, Correia SFH, Georgieva P, Fu L, Antunes M, André PS. A comprehensive dataset of photonic features on spectral converters for energy harvesting. Sci Data 2024; 11:50. [PMID: 38191564 PMCID: PMC10774306 DOI: 10.1038/s41597-023-02827-3] [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: 06/16/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
Building integrated photovoltaics is a promising strategy for solar technology, in which luminescent solar concentrators (LSCs) stand out. Challenges include the development of materials for sunlight harvesting and conversion, which is an iterative optimization process with several steps: synthesis, processing, and structural and optical characterizations before considering the energy generation figures of merit that requires a prototype fabrication. Thus, simulation models provide a valuable, cost-effective, and time-efficient alternative to experimental implementations, enabling researchers to gain valuable insights for informed decisions. We conducted a literature review on LSCs over the past 47 years from the Web of ScienceTM Core Collection, including published research conducted by our research group, to gather the optical features and identify the material classes that contribute to the performance. The dataset can be further expanded systematically offering a valuable resource for decision-making tools for device design without extensive experimental measurements.
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Affiliation(s)
- Rute A S Ferreira
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Sandra F H Correia
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Petia Georgieva
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
- Departament of Electronics, Telecommunications and Informatics, Institute of Electronics and Informatics Engineering of Aveiro (IEETA), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Lianshe Fu
- Department of Physics and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Mário Antunes
- Instituto de Telecomunicações, University of Aveiro, 3810-193, Aveiro, Portugal
- Departament of Electronics, Telecommunications and Informatics, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paulo S André
- Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.
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6
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Liu C, Zhu Z, Pan K, Fu Y, Zhang K, Yang B. Bulk CsPbCl xBr 3-x (1 ≤ x ≤ 3) perovskite nanocrystals/polystyrene nanocomposites with controlled Rayleigh scattering for light guide plate. LIGHT, SCIENCE & APPLICATIONS 2023; 12:261. [PMID: 37914701 PMCID: PMC10620209 DOI: 10.1038/s41377-023-01306-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023]
Abstract
Perovskite nanocrystals (PNCs)/polymer nanocomposites can combine the advantages of each other, but extremely few works can achieve the fabrication of PNCs/polymer nanocomposites by bulk polymerization. We originally adopt a two-type ligand strategy to fabricate bulk PNCs/polystyrene (PS) nanocomposites, including a new type of synthetic polymerizable ligand. The CsPbCl3 PNCs/PS nanocomposites show extremely high transparency even the doping content up to 5 wt%. The high transparency can be ascribed to the Rayleigh scattering as the PNCs distribute uniformly without obvious aggregation. Based on this behavior, we first exploit the potential of PNCs to serve as scatters inside light guided plate (LGP), whose surface illuminance and uniformity can be improved, and this new kind of LGP is compatible with the advanced liquid crystal display technology. Thanks to the facile composition adjustment of CsPbClxBr3-x (1 ≤ x ≤ 3) PNCs, the Rayleigh scattering behavior can also be adjusted so as to the performance of LGP. The best-performing 5.0-inch LGP based on CsPbCl2.5Br0.5 PNCs/PS nanocomposites shows 20.5 times higher illuminance and 1.8 times higher uniformity in display than the control. The LGP based on PNCs/PS nanocomposite exhibits an enormous potential in commercialization no matter based on itself or combined with the LGP-related technology.
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Affiliation(s)
- Chongming Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Zhicheng Zhu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Kaibo Pan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Yuan Fu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China.
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7
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Siripurapu M, Meinardi F, Brovelli S, Carulli F. Environmental Effects on the Performance of Quantum Dot Luminescent Solar Concentrators. ACS PHOTONICS 2023; 10:2987-2993. [PMID: 37602290 PMCID: PMC10436347 DOI: 10.1021/acsphotonics.3c00788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Indexed: 08/22/2023]
Abstract
Luminescent solar concentrators (LSCs) are all-photonic, semitransparent solar devices with great potential in the emerging fields of building-integrated photovoltaics and agrivoltaics. Over the past decade, particularly with the advent of quantum dot (QD) LSCs, tremendous progress has been made in terms of photovoltaic efficiency and device size by increasing solar spectral coverage and suppressing reabsorption losses. Despite these advances in LSC design, the effects of environmental conditions such as rain, dust, and dirt deposits, which are ubiquitous in both urban and agricultural environments, on LSC performance have been largely overlooked. Here, we address these issues by systematically investigating the environmental effects on the solar harvesting and waveguiding capability of state-of-the-art QD-LSCs, namely, the presence of airborne pollutants (dust), water droplets, and dried deposits. Our results show that dust is unexpectedly insignificant for the waveguiding of the concentrated luminescence and only reduces the LSC efficiency through a shadowing effect when deposited on the outer surface, while dust accumulation on the inner LSC side increases the output power due to backscattering of transmitted sunlight. Water droplets, on the other hand, do not dim the incident sunlight, but are detrimental to waveguiding by forming an optical interface with the LSC. Finally, dried deposits, which mimic the evaporation residues of heavy rain or humidity, have the worst effect of all, combining shading and waveguide losses. These results are relevant for the design of application-specific surface functionalization/protection strategies real LSC modules.
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Affiliation(s)
- Meghna Siripurapu
- Indian
Hill School, 6855 Drake Road, Cincinnati, Ohio 45243, United States
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via Cozzi 55, Milan 20126, Italy
| | - Francesco Meinardi
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via Cozzi 55, Milan 20126, Italy
- Glass
to Power, via Fortunato
Zeni 8, Rovereto I-38068, Trento, Italy
| | - Sergio Brovelli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via Cozzi 55, Milan 20126, Italy
- Glass
to Power, via Fortunato
Zeni 8, Rovereto I-38068, Trento, Italy
| | - Francesco Carulli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via Cozzi 55, Milan 20126, Italy
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8
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Okamoto T, Biju V. Slipping-Free Halide Perovskite Supercrystals from Supramolecularly-Assembled Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303496. [PMID: 37170667 DOI: 10.1002/smll.202303496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Indexed: 05/13/2023]
Abstract
Supramolecularly assembled high-order supercrystals (SCs) help control the dielectric, electronic, and excitonic properties of semiconductor nanocrystals (NCs) and quantum dots (QDs). Ligand-engineered perovskite NCs (PNCs) assemble into SCs showing shorter excitonic lifetimes than strongly dielectric PNC films showing long photoluminescence (PL) lifetimes and long-range carrier diffusion. Monodentate to bidentate ligand exchange on ≈ 8 nm halide perovskite (APbX3 ; A:Cs/MA, X:Br/I) PNCs generates mechanically stable SCs with close-packed lattices, overlapping electronic wave functions, and higher dielectric constant, providing distinct excitonic properties from single PNCs or PNC films. From Fast Fourier Transform (FFT) images, time-resolved PL, and small-angle X-ray scattering, structurally and excitonically ordered large SCs are identified. An Sc shows a smaller spectral shift (<35 meV) than a PNC film (>100 meV), a microcrystal (>100 meV), or a bulk crystal (>100 meV). Also, the exciton lifetime (<10 ns) of an SC is excitation power-independent in the single exciton regime 〈N〉<1, comparable to an isolated PNC. Therefore, bidentate-ligand-assisted SCs help overcome delayed exciton or carrier recombination in halide perovskite nanocrystal assemblies or films.
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Affiliation(s)
- Takuya Okamoto
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido, 001-0020, Japan
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Vasudevanpillai Biju
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido, 001-0020, Japan
- Graduate School of Environmental Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
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9
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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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10
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Xu CF, Liu YP, Yu Y, Meng XY, Zong H, Lv Q, Xia XY, Wang XD, Liao LS. Two-Dimensional Optical Waveguides at Telecom Wavelengths Based on Organic Single-Crystal Microsheets of a Charge Transfer Complex. J Phys Chem Lett 2023; 14:3047-3056. [PMID: 36946651 DOI: 10.1021/acs.jpclett.3c00417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Organic charge transfer (CT) cocrystals open a new door for the exploitation of low-dimensional near-infrared (NIR) emitters by a convenient self-assembly approach. However, research about the fabrication of sheet-like NIR-emitting microstructures that are significant for structural construction and integrated application is limited by the unidirectional molecular packing mode. Herein, via regulation of the biaxial intermolecular CT interaction, single-crystalline microsheets with remarkable NIR emission from 720 to 960 nm were synthesized via the solution self-assembly process of dithieno[3,2-b:2',3'-d]thiophene and 7,7,8,8-tetracyanoquinodimethane. The expected sheet-like structure is conducive to achieving a two-dimensional (2D) optical waveguide with an ultralow optical loss rate of 0.250 dB/μm at 860 nm. More significantly, these as-prepared organic microsheets with tunable thicknesses (h) from 100 to 1100 nm exhibit thickness-dependent NIR optical transportation performance. These findings could pave the way to a new class of low-dimensional NIR emitters for 2D photonics at telecom wavelengths.
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Affiliation(s)
- Chao-Fei Xu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Yan-Ping Liu
- State Key Laboratory of Modern Optical Instrumentation, Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, China
| | - Yue Yu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Xin-Yue Meng
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Hao Zong
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Qiang Lv
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Xing-Yu Xia
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Xue-Dong Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Liang-Sheng Liao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, P. R. China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, China
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11
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Wang C, Meng W, Li Y, Xu G, Peng M, Nie S, Deng Z. Ultra-small α-CsPbI 3 perovskite quantum dots with stable, bright and pure red emission for Rec. 2020 display backlights. NANOSCALE 2023; 15:1661-1668. [PMID: 36598774 DOI: 10.1039/d2nr05456f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The synthesis of α-CsPbI3 perovskite quantum dots (QDs) with pure red emission around 630 nm is in high demand for display backlight application. However, the phase transition of α-CsPbI3 to yellow non-emitting δ-CsPbI3 has been proven to be a great challenge for the classic colloidal synthesis route for perovskite QDs in octadecene (ODE). Herein, we report a novel colloidal synthesis route by replacing ODE with lauryl methacrylate (LMA) as the reaction solvent to improve the solubility of precursors, resulting in small sized α-CsPbI3 QDs with a diameter of only 4.2 nm, which are the smallest red PQDs reported so far. The corresponding CsPbI3 QD films exhibit a tunable photoluminescence (PL) emission peak in the bright pure red region of 627 to 638 nm. The CsPbI3 QD polymer composite films with PL emission at 630 nm exhibit a superior photoluminescence quantum yield (PLQY) and photostability to mixed halide CsPbBrI2 films under intense illumination. Perovskite light emitting diodes (LED) with the color gamut reaching 96% of the Rec. 2020 standard are achieved using these films. This study provides a high-performance pure red fluorescent material with a robust, low-cost, and reproducible colloidal chemistry that will pave the way for the adoption of perovskite QDs in display backlight application.
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Affiliation(s)
- Chuying Wang
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
| | - Wen Meng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
| | - Yacong Li
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
| | - Guangyong Xu
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
| | - Min Peng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
| | - Shuming Nie
- Departments of Bioengineering, Chemistry, Electrical and Computer Engineering, and Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Zhengtao Deng
- College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Microstructures, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China.
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12
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Cao M, Zhao X, Gong X. Achieving High-Efficiency Large-Area Luminescent Solar Concentrators. JACS AU 2023; 3:25-35. [PMID: 36711087 PMCID: PMC9875231 DOI: 10.1021/jacsau.2c00504] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 05/27/2023]
Abstract
Luminescent solar concentrators (LSCs) are semitransparent windows that are able to generate electricity from sunlight absorption. LSCs have shown huge promise for realizing building-integrated photovoltaics (BIPV). Unfortunately, to date, the power conversion efficiency (PCE) of LSCs is still very low which dramatically hampers their practical applications. In this Perspective, We summarize and review the latest developments of LSCs by looking at different structures. Among others, we focus more on the next developments in the field of LSCs, i.e., the possibility of high PCE, large area, mass production, and durability needed for future industrial development. We hope to promote the application of uniform testing standards and to draw attention to industrial development, toxicity, and durability. Then, we will provide a critical assessment of the field of LSCs. Finally, the challenge and solution will be discussed.
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Affiliation(s)
- Mengyan Cao
- State
Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Xiujian Zhao
- State
Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Xiao Gong
- State
Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, P. R. China
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13
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Hameed TA, Mohamed F, Abd-El-Messieh SL, Ward A. Methylammonium lead iodide/poly(methyl methacrylate) nanocomposite films for photocatalytic applications. MATERIALS CHEMISTRY AND PHYSICS 2023; 293:126811. [DOI: 10.1016/j.matchemphys.2022.126811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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14
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Akkerman QA, Nguyen TPT, Boehme SC, Montanarella F, Dirin DN, Wechsler P, Beiglböck F, Rainò G, Erni R, Katan C, Even J, Kovalenko MV. Controlling the nucleation and growth kinetics of lead halide perovskite quantum dots. Science 2022; 377:1406-1412. [PMID: 36074820 DOI: 10.1126/science.abq3616] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Colloidal lead halide perovskite (LHP) nanocrystals are of interest as photoluminescent quantum dots (QDs) whose properties depend on the size and shape. They are normally synthesized on subsecond time scales through hard-to-control ionic metathesis reactions. We report a room-temperature synthesis of monodisperse, isolable spheroidal APbBr3 QDs (A=Cs, formamidinium, methylammonium) that are size-tunable from 3 to over 13 nanometers. The kinetics of both nucleation and growth are temporally separated and drastically slowed down by the intricate equilibrium between the precursor (PbBr2) and the A[PbBr3] solute, with the latter serving as a monomer. QDs of all these compositions exhibit up to four excitonic transitions in their linear absorption spectra, and we demonstrate that the size-dependent confinement energy for all transitions is independent of the A-site cation.
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Affiliation(s)
- Quinten A Akkerman
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Tan P T Nguyen
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | - Simon C Boehme
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Federico Montanarella
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Dmitry N Dirin
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Philipp Wechsler
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Finn Beiglböck
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Gabriele Rainò
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, F-35000 Rennes, France
| | - Maksym V Kovalenko
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, CH-8600, Switzerland
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15
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Chen J, Huang X, Xu Z, Chi Y. Alcohol-Stable Perovskite Nanocrystals and Their In Situ Capsulation with Polystyrene. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33703-33711. [PMID: 35819234 DOI: 10.1021/acsami.2c07707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In recent years, lead halide perovskite nanocrystals (PNCs) have presented potential scalable applications in all fields due to their outstanding properties. However, most commonly used PNCs capped with oleic acid (OA) and oleylamine (OAm) suffer from bad stability in polar solutions and thus require various surface protections with organic or inorganic materials. Encapsulation with highly hydrophobic polystyrene (PS) is one of the most efficient ways to protect PNCs; however, the presently used swelling-shrinking strategy faces several challenges, such as weak interaction between PS chains and the surface ligands in nonpolar media causing a low encapsulation efficiency, and serious aggregation of PS particles during the shrinkage process leading to very different particle sizes. Herein, alcohol-stable polyacrylic acid-capped CsPbBr3 PNCs (i.e., PAA-PNCs) are first synthesized and then in situ encapsulated with PS shells by polymerizing styrene monomer on the PNC surfaces in a polar organic solvent (e.g., ethanol). The in situ PS-encapsulated PAA-PNCs (i.e., PAA-PNCs@iPS) exhibit outstanding monodispersity, remarkable water, heat, and UV stability, high fluorescence activity, and color purity. The unique synthesis strategy and good performances of PAA-PNCs@iPS will boost the applications of PNCs in LEDs, biological imaging, and chemosensing.
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Affiliation(s)
- Jie Chen
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xu Huang
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Zelian Xu
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yuwu Chi
- College of Chemistry, MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fuzhou University, Fuzhou, Fujian 350108, China
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16
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Li DY, Cheng Y, Sun CJ, Xu ZY, Sun YM, Wang YJ, Yan X, Wu YF, Lei XW, Yue CY. Zero-dimensional Hybrid Antimony Halide with Intrinsic Cyan Light Emission. Chem Asian J 2022; 17:e202200502. [PMID: 35762228 DOI: 10.1002/asia.202200502] [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: 05/15/2022] [Revised: 06/26/2022] [Indexed: 11/11/2022]
Abstract
Recently, zero-dimensional (0D) hybrid metal halides have attracted intensive attention with wide applications in solid-state lighting and display diodes. Herein, by using the facile wet-chemistry method, we prepared one new 0D hybrid antimony halide of [HMHQ] 2 SbCl 5 ·2H 2 O (MHQ = 2-methyl-8-hydroxyquinoline) based on discrete [SbCl 5 ] 2- unit. Remarkably, the bulk crystals of [HMHQ] 2 SbCl 5 ·2H 2 O exhibit strong cyan light emission with promising photoluminescence quantum yield (PLQY) of 18.92%. Systematical studies disclose that the cyan emission is mainly derived from the radiative recombination within conjugated organic cation. Benefiting from the promising luminescent performance, this 0D antimony halide can be utilized as an excellent down-conversion light emitting luminescent material to assemble white light-emitting diodes with high color rendering index (CRI) of 90.2.
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Affiliation(s)
- Dong-Yang Li
- Qufu Normal University, School of Chemistry and Chemical Engineering, CHINA
| | - Yu Cheng
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Chuan-Ju Sun
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Zi-Yan Xu
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Yu-Ming Sun
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Yu-Jiao Wang
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Xue Yan
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Yi-Fan Wu
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Xiao-Wu Lei
- Jining University, School of Chemistry, Chemical Engineer and Materials, CHINA
| | - Cheng-Yang Yue
- Jining University, Department of Chemistry and Chemical Engieneering, Xingtan Road, 273155, Qufu, CHINA
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17
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Bai M, Zhang Y, Wan H, Chen G, Liu X, Ma R. Tb 3+/Sm 3+ co-doped double perovskite: synthesis, exfoliation and luminescence properties. Chem Commun (Camb) 2022; 58:6626-6629. [PMID: 35587683 DOI: 10.1039/d2cc02091b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tb3+/Sm3+ co-doped double perovskite K[K1.5(Tb1-xSmx)0.5]Ta3O10 (denoted as KKT1-xSxTO) was prepared, which exhibited typical Tb3+ and Sm3+ photoluminescence emissions and tunable colours. After protonation and subsequent exfoliation processes, unilaminar KT1-xSxTO nanosheets with a lateral size of ∼300 nm and thickness of ∼2.7 nm were obtained.
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Affiliation(s)
- Mingjun Bai
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Ying Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 45001, P. R. China.
| | - Hao Wan
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 45001, P. R. China.
| | - Gen Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Xiaohe Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, P. R. China. .,School of Chemical Engineering, Zhengzhou University, Zhengzhou 45001, P. R. China.
| | - Renzhi Ma
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
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18
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Xin W, Wang J, Xu B, Wu J, Wang J, Ren Z, Cai C, Xue C, Li J, Wang X. Construction of highly efficient carbon dots-based polymer photonic luminescent solar concentrators with sandwich structure. NANOTECHNOLOGY 2022; 33:305601. [PMID: 35395655 DOI: 10.1088/1361-6528/ac659d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The enhancement of photoluminescence (PL) emission and waveguide play a key role in improving the optical efficiency of luminescent solar concentrators (LSCs). In this work, to boosting PL emission and waveguide simultaneously, one photonic crystal (PC) structure (crystalline colloid arrays (CCAs)) was introduced into carbon dots (CDs)-based polymer LSCs. A sandwich-structured CDs-based polymer photonic LSC, comprising glass/CDs-based polymer PC film/glass, was created. First, CDs-based colloidal crystal suspensions were prepared by co-assembly of monodispersed p(MMA-NIPAm) colloids and multicolor-emitting CDs in HEMA monomer induced by the evaporation-driven assembly. The obtained suspensions not only had uniform PL and structural colors, but showed enhanced PL emission. Second, the above suspensions were sandwiched between two glass sheets and finally a photonic polymer LSC with sandwiched structure (25 × 25 × 1.8 mm3) were formed via one-step photopolymerization technique. Remarkably, the optimal CDs-based polymer photonic LSCs with sandwiched structure not only had high transparence at visible range (>60%), but exhibited PL emission enhancement (at least 2 times). Furthermore, the maximum external optical efficiency (ηopt) of 5.84% could be achieved based on yellow-emitting CDs-based polymer photonic LSC. The high external optical efficiency was mainly attributed to the PL emission enhancement and good PC waveguide.
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Affiliation(s)
- Wei Xin
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jianying Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Bing Xu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jun Wu
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jun Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Zhanpeng Ren
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Chen Cai
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Chenglong Xue
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Jinhua Li
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
| | - Xianbao Wang
- Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China
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19
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Wu JJ, Guo Y, Yao WD, Liu WL, Guo SP. Symmetry breaking of A 3M 2X 9-type perovskite derivatives induced by polar quaternary ammonium cations: achieving efficient nonlinear optical properties. Dalton Trans 2022; 51:4878-4883. [PMID: 35260873 DOI: 10.1039/d2dt00451h] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Low-dimensional organic-inorganic metal halides, especially lead-free perovskites, are attracting increasing attention because of their environmentally friendly processing, flexible structures, chemical stability, and promising nonlinear optical properties. Herein, we report a new stable polar 0D lead-free hybrid bismuth chloride to enable the second-harmonic generation (SHG) active material (BTA)3Bi2Cl9 (BTA = benzyltriethylammonium, C6H5CH2N(C2H5)3+) that was obtained by the antisolvent vapor diffusion method and crystallized in the polar Cc space group. Its structure features organic cations surrounded by face-sharing [Bi2Cl9]3- dimers. (BTA)3Bi2Cl9 exhibits a wide direct bandgap (3.21 eV) and a strong phase-matchable SHG conversion efficiency (1.39 × KDP). Theoretical calculation reveals that the SHG response is owing to the synergistic effect of distorted inorganic [Bi2Cl9]3- anions and polar organic BTA+ cations. This work not only enriches the family of organic-inorganic A3M2X9 (A = monovalent cations; M = trivalent metal ions; and X = halide ions) NLO crystals but also provides the possibilities for further designing novel lead-free semiconducting piezoelectric, pyroelectric and ferroelectric materials.
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Affiliation(s)
- Jia-Jing Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Yue Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Wen-Dong Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Wen-Long Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Sheng-Ping Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
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20
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Wei T, Wang L, Sun C, Xu D, Tao J, Zhang H, Han J, Fan C, Zhang Z, Bi W. Eco-Friendly and Efficient Luminescent Solar Concentrators Based on a Copper(I)-Halide Composite. ACS APPLIED MATERIALS & INTERFACES 2021; 13:56348-56357. [PMID: 34783239 DOI: 10.1021/acsami.1c18361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Luminescent solar concentrators (LSCs) show great promise in reducing the cost of silicon solar cells due to their potential use for high-efficiency energy harvesting. Compared to narrow absorption organic dyes, quantum dots (QDs) are a favorable approach to acquire stable LSCs. However, the use of toxic heavy metals in QDs and the small Stokes shift largely restrict their development. Here, a toxic metal-free, highly luminescent ink based on a copper(I)-halide hybrid cluster is reported, whose quantum yield (QY) exceeds 68%. Under the interaction with halohydrocarbon, CuI and phenethylamine (PEA) can be easily dissolved and the ink can be facilely acquired. The obtained film exhibits strong orange light emission with a large Stokes shift. As a proof-of-concept experiment, (PEA)4Cu4I4 has been used to fabricate LSCs. The as-prepared LSC (4 cm × 4 cm × 0.3 cm) exhibits an internal quantum efficiency (ηint) as high as 44.1%. After coupling to a solar cell, an optical conversion efficiency (ηopt) of 6.85% is acquired from this LSC. In addition, the LSC possesses high stability such as air stability, water stability, and photostability. These results demonstrate that the (PEA)4Cu4I4 film can be employed as a promising candidate for large-area and high-efficiency LSCs.
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Affiliation(s)
- Tong Wei
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Le Wang
- BOE MLED Technology CO., LTD, No. 8 Xihuanzhonglu, BDA, Beijing 100176, P. R. China
| | - Chun Sun
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Da Xu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Jiaqi Tao
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Hu Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Jiachen Han
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Chao Fan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Zihui Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
| | - Wengang Bi
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin 300401, P. R. China
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21
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Gu Y, Yao X, Geng H, Guan G, Hu M, Han M. Highly Transparent, Dual-Color Emission, Heterophase Cs 3Cu 2I 5/CsCu 2I 3 Nanolayer for Transparent Luminescent Solar Concentrators. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40798-40805. [PMID: 34470110 DOI: 10.1021/acsami.1c07686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Transparent luminescent solar concentrators (TLSCs) have been attracting wide attentions for their applications in transparent photovoltaic (PV) windows, smart greenhouses, and mobile electronics on account of the simple architecture and low-cost preparation. We report a novel strategy to fabricate TLSCs using the heterophase lead-free perovskites. The heterophase nanolayered films which combined CsCu2I3 and Cs3Cu2I5 were prepared in one step using a dual-source coevaporation technique. The CsCu2I3/Cs3Cu2I5 films exhibited UV light absorption, a high average visible transmission (AVT) of 86.70%, and dual-color white emission between 350 and 760 nm. Importantly, the TLSCs incorporated with the CsCu2I3/Cs3Cu2I5 films exhibited an impressive optical conversion efficiency of 1.15% under keeping a high AVT of 86.70%. Meanwhile, the TLSCs incorporated with the heterophase films showed considerable stability under ambient conditions. The CIE 1960 color coordinates (0.2082, 0.4680) of the TLSCs incorporated with the CsCu2I3/Cs3Cu2I5 films showed excellent aesthetic quality as compared with those of the TLSCs incorporated with lead-based perovskites. Our finding offers a strategy to prepare lead-free metal halides toward high-performance TLSCs and future transparent PV windows.
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Affiliation(s)
- Yunzhi Gu
- Ultrafast Laser Laboratory, Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Xiang Yao
- Institute of Molecular Plus, Tianjin University, Tianjin 300072, P. R. China
| | - Huaxiu Geng
- Institute of Molecular Plus, Tianjin University, Tianjin 300072, P. R. China
| | - Guijian Guan
- Institute of Molecular Plus, Tianjin University, Tianjin 300072, P. R. China
| | - Minglie Hu
- Ultrafast Laser Laboratory, Key Laboratory of Opto-electronic Information Science and Technology of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Mingyong Han
- Institute of Molecular Plus, Tianjin University, Tianjin 300072, P. R. China
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22
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Yao D, Hoang MT, Wang H. Low-Dimensional-Networked Perovskites with A-Site-Cation Engineering for Optoelectronic Devices. SMALL METHODS 2021; 5:e2001147. [PMID: 34928083 DOI: 10.1002/smtd.202001147] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/30/2020] [Indexed: 06/14/2023]
Abstract
Low-dimensional-networked (LDN) perovskites denote materials in which the molecular structure adopts 2D, 1D, or 0D arrangement. Compared to conventional 3D structured lead halide perovskite (chemical formula: ABX3 where A: monovalent cations, B: divalent cations, X: halides) that have been studied widely as light absorber and used in current state-or-the-art solar cells, LDN perovskite have unique properties such as more flexible crystal structure, lower ion transport mobility, robust stability against environmental stress such as moisture, thermal, etc., making them attractive for applications in optoelectronic devices. Since 2014, reports on LDN perovskite materials used in perovskite solar cells, light emitting diodes (LEDs), luminescent solar concentrators (LSC), and photodetectors have been reported, aiming to overcome the obstacles of conventional 3DN perovskite materials in these optoelectronic devices. In this review, the variable ligands used to make LDN perovskite materials are summarized, their distinct properties compared to conventional 3D perovskite materials. The research progress of optoelectronic devices including solar cells, LEDs, LSCs, and photodetectors that used different LDNs perovskite, the roles and working mechanisms of the LDN perovskites in the devices are also demonstrated. Finally, key research challenges and outlook of LDN materials for various optoelectronic applications are discussed.
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Affiliation(s)
- Disheng Yao
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- School of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China
| | - Minh Tam Hoang
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
| | - Hongxia Wang
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Clean Energy Technologies and Practices, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
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23
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Guan W, Li Y, Zhong Q, Liu H, Chen J, Hu H, Lv K, Gong J, Xu Y, Kang Z, Cao M, Zhang Q. Fabricating MAPbI 3/MoS 2 Composites for Improved Photocatalytic Performance. NANO LETTERS 2021; 21:597-604. [PMID: 33258607 DOI: 10.1021/acs.nanolett.0c04073] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although lead halide perovskites are demonstrated to be promising photocatalysts for hydrogen evolution from hydrogen halide splitting, it still remains challenging to fabricate efficient and stable catalysts. Here MoS2 nanoflowers with abundant active sites are assembled with methylammonium lead iodide (MAPbI3) microcrystals to form a new heterostructure. Its hydrogen evolution rate can reach up to about 30 000 μmol g-1 h-1, which is more than 1000-fold higher than pristine MAPbI3 under visible light irradiation (λ ≥ 420 nm). Importantly, the solar HI splitting efficiency reaches 7.35%, one of the highest efficiencies so far. The introduction of MoS2 with proper band alignment and unsaturated species can efficiently promote the charge separation and afford more active sites for H2 production. This finding not only provides a highly efficient and stable photocatalyst for hydrogen evolution but also offers a useful modification strategy on lead halide perovskites.
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Affiliation(s)
- Wenhao Guan
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Yi Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Qixuan Zhong
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Haiyu Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Jianian Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Huicheng Hu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Kangxiao Lv
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Jin Gong
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Yong Xu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Muhan Cao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
| | - Qiao Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China
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24
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NIR-excitable heterostructured upconversion perovskite nanodots with improved stability. Nat Commun 2021; 12:219. [PMID: 33431869 PMCID: PMC7801668 DOI: 10.1038/s41467-020-20551-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/08/2020] [Indexed: 01/27/2023] Open
Abstract
There is a great need to develop heterostructured nanocrystals which combine two or more different materials into single nanoparticles with combined advantages. Lead halide perovskite quantum dots (QDs) have attracted much attention due to their excellent optical properties but their biological applications have not been much explored due to their poor stability and short penetration depth of the UV excitation light in tissues. Combining perovskite QDs with upconversion nanoparticles (UCNP) to form hybrid nanocrystals that are stable, NIR excitable and emission tunable is important, however, this is challenging because hexagonal phase UCNP can not be epitaxially grown on cubic phase perovskite QDs directly or vice versa. In this work, one-pot synthesis of perovskite-UCNP hybrid nanocrystals consisting of cubic phase perovskite QDs and hexagonal phase UCNP is reported, to form a watermelon-like heterostructure using cubic phase UCNP as an intermediate transition phase. The nanocrystals are NIR-excitable with much improved stability. Combining two or more different materials with different crystal structures into single nanoparticle with combined advantages is challenging. Here, the authors demonstrate one-pot synthesis of perovskite-upconversion hybrid nanocrystals consisting of cubic and hexagonal phases to form a watermelon-like heterostructure.
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25
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Chen C, Zheng S, Song H. Photon management to reduce energy loss in perovskite solar cells. Chem Soc Rev 2021; 50:7250-7329. [PMID: 33977928 DOI: 10.1039/d0cs01488e] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite the rapid development of perovskite solar cells (PSCs) over the past few years, the conversion of solar energy into electricity is not efficient enough or cost-competitive yet. The principal energy loss in the conversion of solar energy to electricity fundamentally originates from the non-absorption of low-energy photons ascribed to Shockley-Queisser limits and thermalization losses of high-energy photons. Enhancing the light-harvesting efficiency of the perovskite photoactive layer by developing efficient photo management strategies with functional materials and arrays remains a long-standing challenge. Here, we briefly review the historical research trials and future research trends to overcome the fundamental loss mechanisms in PSCs, including upconversion, downconversion, scattering, tandem/graded structures, texturing, anti-reflection, and luminescent solar concentrators. We will deeply emphasize the availability and analyze the importance of a fine device structure, fluorescence efficiency, material proportion, and integration position for performance improvement. The unique energy level structure arising from the 4fn inner shell configuration of the trivalent rare-earth ions gives multifarious options for efficient light-harvesting by upconversion and downconversion. Tandem or graded PSCs by combining a series of subcells with varying bandgaps seek to rectify the spectral mismatch. Plasmonic nanostructures function as a secondary light source to augment the light-trapping within the perovskite layer and carrier transporting layer, enabling enhanced carrier generation. Texturing the interior using controllable micro/nanoarrays can realize light-matter interactions. Anti-reflective coatings on the top glass cover of the PSCs bring about better transmission and glare reduction. Photon concentration through perovskite-based luminescent solar concentrators offers a path to increase efficiency at reduced cost and plays a role in building-integrated photovoltaics. Distinct from other published reviews, we here systematically and hierarchically present all of the photon management strategies in PSCs by presenting the theoretical possibilities and summarizing the experimental results, expecting to inspire future research in the field of photovoltaics, phototransistors, photoelectrochemical sensors, photocatalysis, and especially light-emitting diodes. We further assess the overall possibilities of the strategies based on ultimate efficiency prospects, material requirements, and developmental outlook.
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Affiliation(s)
- Cong Chen
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin 300130, People's Republic of China. and State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
| | - Shijian Zheng
- School of Material Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Dingzigu Road 1, Tianjin 300130, People's Republic of China.
| | - Hongwei Song
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People's Republic of China.
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26
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Cai T, Wang J, Li W, Hills‐Kimball K, Yang H, Nagaoka Y, Yuan Y, Zia R, Chen O. Mn 2+/Yb 3+ Codoped CsPbCl 3 Perovskite Nanocrystals with Triple-Wavelength Emission for Luminescent Solar Concentrators. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001317. [PMID: 32999842 PMCID: PMC7509694 DOI: 10.1002/advs.202001317] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/21/2020] [Indexed: 05/18/2023]
Abstract
Doping metal ions into lead halide perovskite nanocrystals (NCs) has attracted great attention over the past few years due to the emergence of novel properties relevant to optoelectronic applications. Here, the synthesis of Mn2+/Yb3+ codoped CsPbCl3 NCs through a hot-injection technique is reported. The resulting NCs show a unique triple-wavelength emission covering ultraviolet/blue, visible, and near-infrared regions. By optimizing the dopant concentrations, the total photoluminescence quantum yield (PL QY) of the codoped NCs can reach ≈125.3% due to quantum cutting effects. Mechanism studies reveal the efficient energy transfer processes from host NCs to Mn2+ and Yb3+ dopant ions, as well as a possible inter-dopant energy transfer from Mn2+ to Yb3+ ion centers. Owing to the high PL QYs and minimal reabsorption loss, the codoped perovskite NCs are demonstrated to be used as efficient emitters in luminescent solar concentrators, with greatly enhanced external optical efficiency compared to that of using solely Mn2+ doped CsPbCl3 NCs. This study presents a new model system for enriching doping chemistry studies and future applications of perovskite NCs.
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Affiliation(s)
- Tong Cai
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Junyu Wang
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Wenhao Li
- School of Engineering and Department of PhysicsBrown University184 Hope StreetProvidenceRI02912USA
| | | | - Hanjun Yang
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Yasutaka Nagaoka
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Yucheng Yuan
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Rashid Zia
- School of Engineering and Department of PhysicsBrown University184 Hope StreetProvidenceRI02912USA
| | - Ou Chen
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
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27
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Liu X, Luo Z, Yin W, Litvin AP, Baranov AV, Zhang J, Liu W, Zhang X, Zheng W. Methanol-induced fast CsBr release results in phase-pure CsPbBr 3 perovskite nanoplatelets. NANOSCALE ADVANCES 2020; 2:1973-1979. [PMID: 36132506 PMCID: PMC9417138 DOI: 10.1039/d0na00123f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/22/2020] [Indexed: 06/12/2023]
Abstract
Formation of a non-emissive wide bandgap CsPb2Br5 component often accompanies the synthesis of CsPbBr3 perovskites, introducing undesired energy states and impeding the charge transport. Here, we demonstrate that a small amount of a methanol additive can promote the CsBr release rate, facilitating CsPbBr3 formation and suppressing CsPb2Br5 formation. Some of the methanol ionizes into CH5O+ and CH3O-, which act as surface ligands and change the crystallization environment, inducing shape evolution from spherical nanocrystals to rectangular nanoplatelets (NPLs), leading to monodispersed and phase-pure 8 unit-cell-thick CsPbBr3 NPLs. Meanwhile, nonradiative recombination processes are inhibited as a result of NPL surface passivation. Bright CsPbBr3 NPLs with a photoluminescence quantum yield reaching 90% were employed as emitters for electroluminescent light-emitting devices.
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Affiliation(s)
- Xin Liu
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
| | - Zhao Luo
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
| | - Wenxu Yin
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
| | - Aleksandr P Litvin
- Center of Information Optical Technology, ITMO University 49 Kronverksky Pr. St. Petersburg 197101 Russia
| | - Alexander V Baranov
- Center of Information Optical Technology, ITMO University 49 Kronverksky Pr. St. Petersburg 197101 Russia
| | - Jiaqi Zhang
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
| | - Wenyan Liu
- College of Materials Science & Engineering, Beihua University Jilin 132013 P. R. China
| | - Xiaoyu Zhang
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University Changchun 130012 P. R. China
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