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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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2
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Panigrahi A, Kumar A, Mishra L, Dubey P, Dutta S, Parida P, Sarangi MK. Modulation of carrier conduction in CsPbBr3 perovskite quantum dots with band-aligned electron and hole acceptors. J Chem Phys 2023; 159:184704. [PMID: 37942870 DOI: 10.1063/5.0174262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023] Open
Abstract
The lead halide perovskites have emerged as promising materials with intriguing photo-physical properties and have immense potential for photovoltaic applications. A comprehensive study on the kinetics of charge carrier (electron/hole) generation and transfer across the interface is key to realizing their future scope for efficient device engineering. Herein, we investigate the interfacial charge transfer (CT) dynamics in cesium lead halide (CsPbBr3) perovskite quantum dots (PQDs) with energetically favorable electron acceptors, anthraquinone (AQ) and p-benzoquinone (BQ), and hole acceptors such as pyrene and 4-(dimethylamino)pyridine (DMAP). With various steady-state and time-resolved spectroscopic and microscopic measurements, a faster electron transfer rate is estimated for CsPbBr3 PQDs with BQ compared to that of AQ, while a superior hole transfer for DMAP is divulged compared to pyrene. In concurrence with the spectroscopic measurements, conducting atomic force microscopic studies across the electrode-PQD-electrode junction reveals an increment in the conductance of the PQD in the presence of both the electron and hole acceptors. The variation of the density of states calculation in the presence of the hole acceptors offers strong support and validation for faster CT efficiency. The above findings suggest that a careful selection of simple yet efficient molecular arrangements can facilitate rapid carrier transfer, which can be designed as auxiliary layers for smooth CT and help in the engineering of cost-effective photovoltaic devices.
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Affiliation(s)
- Aradhana Panigrahi
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Ajay Kumar
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Leepsa Mishra
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Priyanka Dubey
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Soumi Dutta
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology, Patna 801106, India
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Ryu I, Choe G, Kwon H, Hong D, Yim S. Overcoming the Trade-Off between Optical Transmittance and Areal Capacitance of Transparent Supercapacitors for Practical Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207270. [PMID: 36785493 DOI: 10.1002/smll.202207270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/17/2023] [Indexed: 05/18/2023]
Abstract
It is substantially challenging for transition metal oxide nanoparticle (NP)-based electrodes for supercapacitors to achieve high transparency and large capacity simultaneously due to the inherent trade-off between optical transmittance (T) and areal capacitance (CA ). This study demonstrates how this trade-off limitation can be overcome by replacing some electrode NPs with transparent tin oxide (SnO2 ) NPs. Although SnO2 NPs are non-capacitive, they provide effective paths for charge transport, which simultaneously increase the CA and T550nm of the manganese oxide (Mn3 O4 ) NP electrode from 11.7 to 13.4 mF cm-2 and 82.1% to 87.4%, respectively, when 25 wt% of Mn3 O4 are replaced by SnO2 . The obtained CA values at a given T are higher than those of the transparent electrodes previously reported. An energy storage window fabricated using the mixed-NP electrodes exhibits the highest energy density among transparent supercapacitors previously reported. The improved energy density enables the window to operate various electronic devices for a considerable amount of time, demonstrating its applicability in constructing a reliable and space-efficient building-integrated power supply system.
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Affiliation(s)
- Ilhwan Ryu
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Geunpyo Choe
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Hyemin Kwon
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Dajung Hong
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
| | - Sanggyu Yim
- Department of Chemistry, Kookmin University, Seoul, 02707, South Korea
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Mishra L, Behera RK, Panigrahi A, Dubey P, Dutta S, Sarangi MK. Deciphering the Relevance of Quantum Confinement in the Optoelectronics of CsPbBr 3 Perovskite Nanostructures. J Phys Chem Lett 2023; 14:2651-2659. [PMID: 36924080 DOI: 10.1021/acs.jpclett.3c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Perovskites (PVKs) have emerged as an exciting class of semiconducting materials owing to their magnificent photophysical properties and been used in solar cells, light-emitting diodes, photodetectors, etc. The growth of multidimensional nanostructures has revealed many exciting alterations in their optoelectronic properties compared to those of their bulk counterparts. In this work, we have spotlighted the influence of quantum confinement in CsPbBr3 PVKs like the quantum dot (PQD), nanoplatelet (PNPL), and nanorod (PNR) on their charge transfer (CT) dynamics with 1,4-naphthoquinone (NPQ). The energy band alignment facilitates the transfer of both electrons and holes in the PNPL to NPQ, enhancing its CT rate, while only electron transfer in the PQD and PNR diminishes CT. The tunneling current across a metal-nanostructure-metal junction for the PNPL is observed to be higher than others. The higher exciton binding energy in the PNPL results in efficient charge transport by enhancing the mobility of the excited-state carrier and its lifetime compared to those of the PNR and PQD.
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Affiliation(s)
- Leepsa Mishra
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Ranjan Kumar Behera
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Aradhana Panigrahi
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Priyanka Dubey
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Soumi Dutta
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Manas Kumar Sarangi
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
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Salari R, Amjadi M, Hallaj T. Perovskite quantum dots as a chemiluminescence platform for highly sensitive assay of cefazolin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121845. [PMID: 36152503 DOI: 10.1016/j.saa.2022.121845] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
This paper reports on a chemiluminescence (CL) probe consist of CsPbBr3 quantum dots (QDs) in organic phase together with Fe(II) and K2S2O8 in aqueous medium for the highly selective and sensitive determination of the antibiotic, cefazolin (CFZ). The CsPbBr3perovskite QDs prepared by the ligand assisted reprecipitation method, exhibit a narrow fluorescence at 533 nm under 460 nm excitation with a high quantum yield (42 %). The Fe(II) - S2O82- as an ultra-weak CL system is converted to a rather strong CL sensing platform in the presence of organic-phase CsPbBr3 QDs. It was observed that CFZ exerts an enhancement effect on the CL signal of the designed probe in the linear range of 25 - 300 nM, with a low limit of detection (9.6 nM). The introduced sensor has broad application prospects in biosensing, food detection, and other fields with recovery ranging from 94 to 106 %.
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Affiliation(s)
- Rana Salari
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Mohammad Amjadi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran.
| | - Tooba Hallaj
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia 5714783734, Iran
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Romero-Pérez C, Zanetta A, Fernández-Delgado N, Herrera-Collado M, Hernández-Saz J, Molina SI, Caliò L, Calvo ME, Míguez H. Responsive Optical Materials Based on Ligand-Free Perovskite Quantum Dots Embedded in Mesoporous Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1808-1816. [PMID: 36534002 DOI: 10.1021/acsami.2c16867] [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
Herein we show that dispersing inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs) in optical quality films, possessing an accessible and controlled pore size distribution, gives rise to fluorescent materials with a controlled and highly sensitive response to ambient changes. A scaffold-based synthesis approach is employed to obtain ligand-free QDs, whose pristine surface endows them with high sensitivity to the presence of different vapors in their vicinity. At the same time, the void network of the host offers a means to gradually expose the embedded QDs to such vapors. Under these conditions, the luminescent response of the QDs is mediated by the mesostructure of the matrix, which determines the rate at which vapor molecules will adsorb onto the pore walls and, eventually, condensate, filling the void space. With luminescence quantum yields as high as 60%, scaffold-supported ligand-free perovskite nanocrystals display intense photoemission signals over the whole process, as well as high photo- and chemical stability, which allows illuminating them for long periods of time and recovering the original response upon desorption of the condensed phase. The results herein presented open a new route to explore the application of perovskite QD-based materials in sensing.
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Affiliation(s)
- Carlos Romero-Pérez
- Instituto de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, 41092Sevilla, Spain
| | - Andrea Zanetta
- Instituto de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, 41092Sevilla, Spain
| | - Natalia Fernández-Delgado
- Department of Material Science, Metallurgical Engineering and Inorganic-Collado Chemistry IMEYMAT, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, s/n, 11510Puerto Real, Cádiz, Spain
| | - Miriam Herrera-Collado
- Department of Material Science, Metallurgical Engineering and Inorganic-Collado Chemistry IMEYMAT, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, s/n, 11510Puerto Real, Cádiz, Spain
| | - Jesús Hernández-Saz
- Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Universidad de Sevilla, Avda. Camino de los Descubrimientos s/n, 41092Sevilla, Spain
| | - Sergio Ignacio Molina
- Department of Material Science, Metallurgical Engineering and Inorganic-Collado Chemistry IMEYMAT, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, s/n, 11510Puerto Real, Cádiz, Spain
| | - Laura Caliò
- Instituto de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, 41092Sevilla, Spain
| | - Mauricio E Calvo
- Instituto de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, 41092Sevilla, Spain
| | - Hernán Míguez
- Instituto de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, 41092Sevilla, Spain
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7
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Lin WH, Pan SC, Hsu JF, Tseng ZL, Jyu SS, Lin JH. Investigation of Two Photon Absorption of Ligand-Modified CsPbBr 3 Quantum Dots. J Phys Chem Lett 2022; 13:11245-11252. [PMID: 36448820 DOI: 10.1021/acs.jpclett.2c02615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The characteristics and application of nonlinear absorption from CsPbBr3 QDs film with the ligand-modified strategy have been investigated in this work. By means of a near-infrared fs Ti:sapphire laser as a light source, the up-conversion emission of CsPbBr3 QDs film of around 518 nm revealed a quadratic increase with the pump intensity. Through the temperature-dependent up-conversion emission, we obtained the binding energy and longitudinal optical (LO) phonon energy of CsPbBr3 QDs film of around 58.1 and 61.2 meV, respectively. Due to more active thermal coupling between the excited electron or hot phonon effect, the photon decay trace under two-photon excitation was prolonged at higher temperatures. The ligand-modified CsPbBr3 QDs film exhibits a relatively large TPA coefficient of around 28.6 cm/GW by the open aperture Z-scan measurement, and it has been demonstrated as a promising nonlinear medium to obtain the pulsewidth of ultrafast lasers.
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Affiliation(s)
- Wan-Hsuan Lin
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei10608, Taiwan
| | - Shao-Chien Pan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei10608, Taiwan
| | - Jen-Feng Hsu
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei10608, Taiwan
| | - Zong-Liang Tseng
- Organic Electronics Research Center and Department of Electronic Engineering, Ming Chi University of Technology, New Taipei City243303, Taiwan
| | - Siao-Shan Jyu
- Taiwan O-Film Technology Company Limited, New Taipei City22101, Taiwan
| | - Ja-Hon Lin
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei10608, Taiwan
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8
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Cai Y, Li W, Tian D, Shi S, Chen X, Gao P, Xie R. Organic Sulfonium‐Stabilized High‐Efficiency Cesium or Methylammonium Lead Bromide Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202209880. [DOI: 10.1002/anie.202209880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Yuting Cai
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wenbo Li
- Laboratory of Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361005 China
| | - Dongjie Tian
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Shuchen Shi
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
| | - Xi Chen
- College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Peng Gao
- Laboratory of Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361005 China
| | - Rong‐Jun Xie
- College of Materials and Fujian Key Laboratory of Materials Genome Xiamen University Xiamen 361005 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen 361005 China
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9
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Cai Y, Li W, Tian D, Shi S, Chen X, Gao P, Xie RJ. Organic Sulfonium‐Stabilized High‐Efficiency Cesium or Methylammonium Lead Bromide Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuting Cai
- Xiamen University College of Materials and Fujian Key Laboratory of Materials Genome CHINA
| | - Wenbo Li
- Chinese Academy of Sciences Laboratory of Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute CHINA
| | - Dongjie Tian
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Shuchen Shi
- Xiamen University College of Materials and Fujian Key Laboratory of Materials Genome CHINA
| | - Xi Chen
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Peng Gao
- Chinese Academy of Sciences Laboratory of Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute CHINA
| | - Rong-Jun Xie
- Xiamen University College of Materials 422 Siming South Road 361005 Xiamen CHINA
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10
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Kanwat A, Ghosh B, Ng SE, Rana PJS, Lekina Y, Hooper TJN, Yantara N, Kovalev M, Chaudhary B, Kajal P, Febriansyah B, Tan QY, Klein M, Shen ZX, Ager JW, Mhaisalkar SG, Mathews N. Reversible Photochromism in ⟨110⟩ Oriented Layered Halide Perovskite. ACS NANO 2022; 16:2942-2952. [PMID: 35040632 DOI: 10.1021/acsnano.1c10098] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Extending halide perovskites' optoelectronic properties to stimuli-responsive chromism enables switchable optoelectronics, information display, and smart window applications. Here, we demonstrate a band gap tunability (chromism) via crystal structure transformation from three-dimensional FAPbBr3 to a ⟨110⟩ oriented FAn+2PbnBr3n+2 structure using a mono-halide/cation composition (FA/Pb) tuning. Furthermore, we illustrate reversible photochromism in halide perovskite by modulating the intermediate n phase in the FAn+2PbnBr3n+2 structure, enabling greater control of the optical band gap and luminescence of a ⟨110⟩ oriented mono-halide/cation perovskite. Proton transfer reaction-mass spectroscopy carried out to precisely quantify the decomposition product reveals that the organic solvent in the film is a key contributor to the structural transformation and, therefore, the chromism in the ⟨110⟩ structure. These intermediate n phases (2 ≤ n ≤ ∞) stabilize in metastable states in the FAn+2PbnBr3n+2 system, which is accessible via strain or optical or thermal input. The structure reversibility in the ⟨110⟩ perovskite allowed us to demonstrate a class of photochromic sensors capable of self-adaptation to lighting.
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Affiliation(s)
- Anil Kanwat
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Biplab Ghosh
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Si En Ng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Prem J S Rana
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Yulia Lekina
- Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Thomas J N Hooper
- Centre of High Field NMR Spectroscopy and Imaging, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
| | - Natalia Yantara
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Mikhail Kovalev
- Cambridge Centre for Advanced Research and Education (CARES), 1 Create Way, 138602, Singapore
| | - Bhumika Chaudhary
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
- Energy Research Institute @NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Priyanka Kajal
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Benny Febriansyah
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
- Berkeley Educational Alliance for Research in Singapore (BEARS), 1 Create Way, 138602, Singapore
| | - Qi Ying Tan
- Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
- Energy Research Institute @NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
| | - Maciej Klein
- Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Ze Xiang Shen
- Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Joel W Ager
- Berkeley Educational Alliance for Research in Singapore (BEARS), 1 Create Way, 138602, Singapore
- Materials Sciences Division Lawrence Berkeley National Laboratory, 225 Hearst Memorial Mining Building, Berkeley, California 94720-1760, United State of America
| | - Subodh G Mhaisalkar
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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11
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Wu R, Gong S, Wu L, Yu H, Han Q, Wu W. Laser-induced crystal growth observed in CsPbBr 3 perovskite nanoplatelets. Phys Chem Chem Phys 2022; 24:8303-8310. [DOI: 10.1039/d1cp05874f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Benefiting from the easily adjustable optical properties of perovskite, CsPbBr3 nanocrystals (NCs) are considered to be able to show their advantages in the field of display. Here, we report that...
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12
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Park J, Jang HM, Kim S, Jo SH, Lee TW. Electroluminescence of Perovskite Nanocrystals with Ligand Engineering. TRENDS IN CHEMISTRY 2020. [DOI: 10.1016/j.trechm.2020.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Erazo EA, Sánchez-Godoy H, Gualdrón-Reyes AF, Masi S, Mora-Seró I. Photo-Induced Black Phase Stabilization of CsPbI 3 QDs Films. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1586. [PMID: 32806684 PMCID: PMC7466586 DOI: 10.3390/nano10081586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 01/22/2023]
Abstract
α-CsPbI3 quantum dots (QDs) show outstanding photoelectrical properties that had been harnessed in the fabrication of perovskite QDs solar cells. Nevertheless, the stabilization of the CsPbI3 perovskite cubic phase remains a challenge due to its own thermodynamic and the presence of surface defects. Herein, we report the optimization of the CsPbI3 QDs solar cells, by monitoring the structure, the morphology and the optoelectronic properties after a precise treatment, consisting of the conventional solvent washing with a time limited ultraviolet (UV) exposure combination, during the layer-by-layer deposition. The UV treatment compensates the defects coming from the essential but deleterious washing treatment. The material is stable for 200 h and the PCE improved by the 25% compared with that of the device without UV treatment. The photo-enhanced ion mobility mechanism is discussed as the main process for the CsPbI3 QDs and solar cell stability.
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Affiliation(s)
- Eider A. Erazo
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
- Departamento de Química, Universidad de los Andes, Bogotá D.C. 111711, Colombia
| | - H.E. Sánchez-Godoy
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno, Jalisco C.P. 47460, Mexico
| | - Andrés F. Gualdrón-Reyes
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
| | - Sofia Masi
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), Universitat Jaume I (UJI), Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain; (E.A.E.); (H.E.S.-G.); (A.F.G.-R.)
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14
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Liu Y, Wang Z, Liang S, Li Z, Zhang M, Li H, Lin Z. Polar Organic Solvent-Tolerant Perovskite Nanocrystals Permanently Ligated with Polymer Hairs via Star-like Molecular Bottlebrush Trilobe Nanoreactors. NANO LETTERS 2019; 19:9019-9028. [PMID: 31692361 DOI: 10.1021/acs.nanolett.9b04047] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The key to exploiting perovskite nanocrystals (NCs) for long-term practical use in optoelectronic materials and devices lies in the ability to access stable NCs. Herein, we report the crafting of hairy perovskite NCs with a set of markedly improved stabilities by capitalizing on rationally designed star-like molecular bottlebrush trilobes as nanoreactors. An intriguing star-like molecular bottlebrush trilobe, poly(2-hydroxyethyl methacrylate)-graft-(poly(acrylic acid)-block-partially cross-linked polystyrene (denoted PHEMA-g-(PAA-b-cPS)) is synthesized. Subsequently, it is employed as a polymeric nanoreactor to direct the growth of green-emitting all-inorganic perovskite CsPbBr3 NCs intimately and stably tethered by partially cross-linked PS "hairs" (i.e., cPS-capped CsPbBr3 NCs). The resulting CsPbBr3 NCs exhibit an array of impressive stabilities against UV irradiation, moisture, heat, and water, due to permanently ligated hydrophobic cPS "hairs" on the surface of CsPbBr3 NCs as a result of the original covalent bonding between PAA and cPS blocks. More importantly, cPS-capped CsPbBr3 NCs manifest outstanding stability in various polar organic solvents. Such greatly improved stability can be attributed to the reduced surface defects enabled by the favorable interaction (i.e., coordination interaction and hydrogen bonding) between CsPbBr3 NCs and polar solvents, which dominates over their dissolution by polar solvents. Such exceptional stabilities impart the use of cPS-capped CsPbBr3 NCs as a selective probe for tracing the presence of Cl-/I- in polar organic solvents. The amphiphilic nonlinear block copolymer nanoreactor strategy can afford easy access to stable perovskite NCs of interest with controlled compositions and surface chemistry. They may find applications in solar cells, LEDs, photodetectors, lasers, bioimaging, biosensors, etc.
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Affiliation(s)
- Yijiang Liu
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , Xiangtan University , Xiangtan 411105 , Hunan Province , China
| | - Zewei Wang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Shuang Liang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Zili Li
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Mingyue Zhang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Huaming Li
- College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education , Xiangtan University , Xiangtan 411105 , Hunan Province , China
| | - Zhiqun Lin
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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15
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Yao MM, Jiang CH, Yao JS, Wang KH, Chen C, Yin YC, Zhu BS, Chen T, Yao HB. General Synthesis of Lead-Free Metal Halide Perovskite Colloidal Nanocrystals in 1-Dodecanol. Inorg Chem 2019; 58:11807-11818. [DOI: 10.1021/acs.inorgchem.9b01893] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Moyen E, Jun H, Kim HM, Jang J. Surface Engineering of Room Temperature-Grown Inorganic Perovskite Quantum Dots for Highly Efficient Inverted Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42647-42656. [PMID: 30419162 DOI: 10.1021/acsami.8b15212] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inorganic cesium lead bromide quantum dots (CsPbBr3 QDs) are usually synthesized via a high-temperature process (hot injection, HI). This process is similar to that used for the synthesis of other semiconductor QDs (i.e., CdSe@ZnS), which limits their potential cost advantage. CsPbBr3 QDs can also be synthesized at room temperature (RT) in a low cost and easily scalable process, which, thus, is one of the greatest advantages of the CsPbBr3 QDs. However, light-emitting diodes (LEDs) fabricated using RT-QDs exhibit poor performance compared to those of HI-QDs. In fact, QDs are surrounded by insulating ligands to maintain their colloidal stability but these ligands need to be removed to obtain high-performance LEDs. Here, we show that ligand removal techniques used for HI-QDs are not sufficient in the case of RT-QDs. Additional ligand engineering and annealing steps are necessary to remove the excess of ligands from RT-QD films while preventing the coalescence of the QDs. The eventual surface defects induced by annealing can be healed by a subsequent photoactivation step. Moreover, the use of solution processable inorganic charge transport layers can reduce the fabrication costs of LEDs. We fabricated an inverted LED based on a metal oxide electron transport layer and a RT-QD emitting layer which exhibited a maximum current efficiency of 17.61 cd A-1 and a maximum luminance of 22 825 cd m-2.
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Affiliation(s)
- Eric Moyen
- Advanced Display Research Center (ADRC) and Department of Information Display , Kyung Hee University , 26, Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , South Korea
| | - Haeyeon Jun
- Advanced Display Research Center (ADRC) and Department of Information Display , Kyung Hee University , 26, Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , South Korea
| | - Hyo-Min Kim
- Advanced Display Research Center (ADRC) and Department of Information Display , Kyung Hee University , 26, Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , South Korea
| | - Jin Jang
- Advanced Display Research Center (ADRC) and Department of Information Display , Kyung Hee University , 26, Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , South Korea
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17
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Kanwat A, Moyen E, Cho S, Jang J. Rubidium as an Alternative Cation for Efficient Perovskite Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16852-16860. [PMID: 29687710 DOI: 10.1021/acsami.8b01292] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Incorporation of rubidium (Rb) into mixed lead halide perovskites has recently achieved record power conversion efficiency and excellent stability in perovskite solar cells. Inspired by these tremendous advances in photovoltaics, this study demonstrates the impact of Rb incorporation into MAPbBr3-based light emitters. Rb partially substitutes MA (methyl ammonium), resulting in a mixed cation perovskite with the formula MA(1- x)Rb xPbBr3. Pure MAPbBr3 crystallizes into a polycrystalline layer with highly defective sub-micrometer grains. However, the addition of a small amount of Rb forms MA(1- x)Rb xPbBr3 nanocrystals (10 nm) embedded in an amorphous matrix of MA/Rb Br. These nanocrystals grow into defect-free sub-micrometer-sized crystallites with further addition of Rb, resulting in a 3-fold increase in exciton lifetime when the molar ratio of MABr/RbBr is 1:1. A thin film fabricated with a 1:1 molar ratio of MABr/RbBr showed the best electroluminescent properties with a current efficiency (CE) of 9.45 cd/A and a luminance of 7694 cd/m2. These values of CE and luminance are, respectively, 19 and 10 times larger than those achieved by pure MAPbBr3 devices (0.5 cd/A and 790 cd/m2). We believe this work provides important information on the future compositional optimization of Rb+-based mixed cation perovskites for obtaining high-performance light-emitting diodes.
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Affiliation(s)
- Anil Kanwat
- Advanced Display Research Center (ADRC), Department of Information Display , Kyung Hee University , Dongdaemoon-ku , Seoul 130-701 , Korea
| | - Eric Moyen
- Advanced Display Research Center (ADRC), Department of Information Display , Kyung Hee University , Dongdaemoon-ku , Seoul 130-701 , Korea
| | - Sinyoung Cho
- Advanced Display Research Center (ADRC), Department of Information Display , Kyung Hee University , Dongdaemoon-ku , Seoul 130-701 , Korea
| | - Jin Jang
- Advanced Display Research Center (ADRC), Department of Information Display , Kyung Hee University , Dongdaemoon-ku , Seoul 130-701 , Korea
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