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Yin Q, Chen T, Xie J, Lin R, Liang J, Wang H, Luo Y, Zhou S, Li H, Wang Z, Gao P. Unveiling the Effect of Cooling Rate on Grown-in Defects Concentration in Polycrystalline Perovskite Films for Solar Cells with Improved Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405840. [PMID: 38994697 DOI: 10.1002/adma.202405840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/29/2024] [Indexed: 07/13/2024]
Abstract
Numerous efforts are devoted to reducing the defects at perovskite surface and/or grain boundary; however, the grown-in defects inside grain is rarely studied. Here, the influence of cooling rate on the point defects concentration in polycrystalline perovskite film during heat treatment processing is investigated. With the combination of theoretical and experimental studies, this work reveals that the supersaturated point defects in perovskite films generate during the cooling process and its concentration improves as the cooling rate increases. The supersaturated point defects can be minimized through slowing the cooling rate. As a result, the optimized FAPbI3 polycrystalline films achieve a superior carrier lifetime of up to 12.6 µs and improved stability. The champion device delivers a 25.47% PCE (certified 24.7%) and retain 90% of their initial value after >1100 h of operation at the maximum power point. These results provide a fundamental understanding of the mechanisms of grown-in defects formation in polycrystalline perovskite film.
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Affiliation(s)
- Qixin Yin
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Tian Chen
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Jiangsheng Xie
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Ruohao Lin
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Jiahao Liang
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Hepeng Wang
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Yuqing Luo
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Sicen Zhou
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Hailin Li
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Zhouti Wang
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Pingqi Gao
- School of Materials, Shenzhen Campus of Sun Yat-sen University, Gongchang Road No. 66, Shenzhen, Guangdong, 518107, China
- Institute for Solar Energy Systems, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
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Ye SQ, Yin ZC, Lin HS, Wang WF, Li M, Liu Y, Lei YX, Liu WR, Yang S, Wang GW. Interface Passivation of a Pyridine-Based Bifunctional Molecule for Inverted Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30534-30544. [PMID: 38818656 DOI: 10.1021/acsami.4c03731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Organic-inorganic hybrid perovskite solar cells (PSCs) have recently been demonstrated to be promising renewable harvesters because of their prominent photovoltaic power conversion efficiency (PCE), although their stability and efficiency still have not reached commercial criteria. Trouble-oriented analyses showcase that defect reduction among the grain boundaries and interfaces in the prepared perovskite polycrystalline films is a practical strategy, which has prompted researchers to develop functional molecules for interface passivation. Herein, the pyridine-based bifunctional molecule dimethylpyridine-3,5-dicarboxylate (DPDC) was employed as the interface between the electron-transport layer and perovskite layer, which achieved a champion PCE of 21.37% for an inverted MAPbI3-based PSC, which was greater than 18.64% for the control device. The mechanistic studies indicated that the significantly improved performance was mainly attributed to the remarkably enhanced fill factor with a value greater than 83%, which was primarily due to the nonradiative recombination suppression offered by the passivation effect of DPDC. Moreover, the promoted carrier mobility together with the enlarged crystal size contributed to a higher short-circuit current density. In addition, an increase in the open-circuit voltage was also observed in the DPDC-treated PSC, which benefited from the improved work function for reducing the energy loss during carrier transport. Furthermore, the DPDC-treated PSC showed substantially enhanced stability, with an over 80% retention rate of its initial PCE value over 300 h even at a 60% relative humidity level, which was attributed to the hydrophobic nature of the DPDC molecule and effective defect passivation. This work is expected not only to serve as an effective strategy for using a pyridine-based bifunctional molecule to passivate perovskite interfaces to enhance photovoltaic performance but also to shed light on the interface passivation mechanism.
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Affiliation(s)
- Shi-Qi Ye
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zheng-Chun Yin
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Hao-Sheng Lin
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Wei-Feng Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mingjie Li
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yuanyuan Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu-Xuan Lei
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wen-Rui Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shangfeng Yang
- CAS Key Laboratory of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guan-Wu Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
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Dong K, Zhu L, Yang G, Zheng L, Wang Y, Zhang B, Zhou J, Bian J, Zhang F, Yu S, Liu S, Wang M, Xiao JD, Guo X, Jiang X. Influence of F-Containing Materials on Perovskite Solar Cells. CHEMSUSCHEM 2024:e202400038. [PMID: 38771426 DOI: 10.1002/cssc.202400038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/21/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
Perovskite solar cells (PSCs) are usually modified and passivated to improve their performance and stability. The interface modification and bulk doping are the two basic strategies. Fluorine (F)-containing materials are highly favored because of their unique hydrophobicity and coordination ability. This review discusses the basic characteristics of F, and the basic principles of improving the photovoltaic performance and stability of PSC devices using F-containing materials. We systematically summarized the latest progress in the application of F-containing materials to achieve efficient and stable PSCs on several key interface layers. It is believed that this work will afford significant understanding and inspirations toward the future application directions of F-containing materials in PSCs, and provide profound insights for the development of efficient and stable PSCs.
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Affiliation(s)
- Kaiwen Dong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Lina Zhu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Guangyue Yang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Likai Zheng
- Laboratory of Photonics and Interfaces, École polytechnique fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Yuehui Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Bingqian Zhang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Jierui Zhou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Jiming Bian
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Fengshan Zhang
- Shandong Huatai Paper Co., Ltd & Shandong Yellow Triangle Biotechnology Industry Research Institute Co., LTD, Dongying, 257335, P. R. China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Shiwei Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Minhuan Wang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Juan-Ding Xiao
- Anhui Graphene Carbon Fiber Materials Research Center, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, P. R. China
| | - Xin Guo
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023, P. R. China
| | - Xiaoqing Jiang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
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Geng S, Duan J, Liu N, Li H, Zhu X, Duan X, Guo Q, Dou J, He B, Zhao Y, Tang Q. Influence of Donor Skeleton on Intramolecular Electron Transfer Amount for Efficient Perovskite Solar Cells. Angew Chem Int Ed Engl 2024:e202407383. [PMID: 38751151 DOI: 10.1002/anie.202407383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Indexed: 06/21/2024]
Abstract
The passivation of the defects derived from rapid-crystallization with electron-donating molecules is always a prerequisite to obtain desirable perovskite films for efficient and stable solar cells, thus, the in-depth understanding on the correlations between molecular structure and passivation capacity is of great importance for screening passivators. Here, we introduce the double-ended amide molecule into perovskite precursor solution to modulate crystallization process and passivate defects. By regulating the intermediate bridging skeletons with alkyl, alkenyl and benzene groups, the results show the passivation strength highly depends on the spin-state electronic structure that serves as an intrinsic descriptor to determine the intramolecular charge distribution by controlling orbital electron transfer from the donor segment to acceptor segment. Upon careful optimization, the benzene-bridged amide molecule demonstrates superior efficacy on improving perovskite film quality. As a physical proof-of-concept, the carbon-based, all-inorganic CsPbI2Br solar cell delivers a significantly increased efficiency of 15.51 % with a remarkably improved stability. Based on the same principle, a champion efficiency of 24.20 % is further obtained on the inverted (Cs0.05MA0.05FA0.9)Pb(I0.93Br0.07)3 solar cell. These findings provide new fundamental insights into the influence of spin-state modulation on effective perovskite solar cells.
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Affiliation(s)
- Shengwei Geng
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Jialong Duan
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Naimin Liu
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Hui Li
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Xixi Zhu
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Xingxing Duan
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Qiyao Guo
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Jie Dou
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Benlin He
- School of Materials Science and Engineering, Ocean University of China, Qingdao, 266590, PR China
| | - Yuanyuan Zhao
- College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Qunwei Tang
- Institute of Carbon Neutrality, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
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Wan YX, Du HQ, Jiang Y, Zhi R, Xie ZW, Zhou YC, Rothman MU, Tao ZW, Yin ZW, Liang GJ, Li WN, Cheng YB, Li W. Elimination of Intragrain Defect to Enhance the Performance of FAPbI 3 Perovskite Solar Cells by Ionic Liquid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400985. [PMID: 38693073 DOI: 10.1002/smll.202400985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/02/2024] [Indexed: 05/03/2024]
Abstract
Ionic liquids have been widely used to improve the efficiency and stability of perovskite solar cells (PSCs), and are generally believed to passivate defects on the grain boundaries of perovskites. However, few studies have focused on the relevant effects of ionic liquids on intragrain defects in perovskites which have been shown to be critical for the performance of PSCs. In this work, the effect of ionic liquid 1-hexyl-3-methylimidazolium iodide (HMII) on intragrain defects of formamidinium lead iodide (FAPbI3) perovskite is investigated. Abundant {111}c intragrain planar defects in pure FAPbI3 grains are found to be significantly reduced by the addition of the ionic liquid HMII, shown by using ultra-low-dose selected area electron diffraction. As a result, longer charge carrier lifetimes, higher photoluminescence quantum yield, better charge carrier transport properties, lower Urbach energy, and current-voltage hysteresis are achieved, and the champion power conversion efficiency of 24.09% is demonstrated. These observations suggest that ionic liquids significantly improve device performance resulting from the elimination of {111}c intragrain planar defects.
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Affiliation(s)
- Yi-Xian Wan
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Hong-Qiang Du
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Yang Jiang
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Rui Zhi
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Zheng-Wen Xie
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yi-Chen Zhou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Mathias Uller Rothman
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
| | - Zhi-Wei Tao
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Zhi-Wen Yin
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Gui-Jie Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, P. R. China
| | - Wang-Nan Li
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, P. R. China
| | - Yi-Bing Cheng
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wei Li
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
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Wang B, Liu F, Feng F, Zhang X, Liang Y, Wang W, Guo H, Guan Y, Zhang Y, Wu C, Zheng S. Ruddlesden-Popper Perovskite Nanocrystals as Interface Modification Layer for Efficient Perovskite Solar Cells. NANO LETTERS 2024; 24:4512-4520. [PMID: 38579125 DOI: 10.1021/acs.nanolett.4c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
Perovskite nanocrystals are advantageous for interfacial passivation of perovskite solar cells (PSCs), but the insulating long alkyl chain surface ligands impede the charge transfer, while the conventional ligand exchange would possibly introduce surface defects to the nanocrystals. In this work, we reported novel in situ modification of CsPbBr3 nanocrystals using a short chain conjugated molecule 2-methoxyphenylethylammonium iodide (2-MeO-PEAI) for interfacial passivation of PSCs. Transmission electron microscopy studies with atomic resolution unveil the transformation from cubic CsPbBr3 to Ruddlesden-Popper phase (RPP) nanocrystals due to halogen exchange. Synergic passivation by the RPP nanocrystals and 2-MeO-PEA+ has led to suppressed interface defects and enhanced charge carrier transport. Consequently, PSCs with in situ modified RPP nanocrystals achieved a champion power conversion efficiency of 24.39%, along with an improvement in stability. This work brings insights into the microstructural evolution of perovskite nanocrystals, providing a novel and feasible approach for interfacial passivation of PSCs.
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Affiliation(s)
- Biao Wang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Fangzhou Liu
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Fanxiu Feng
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Xian Zhang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Yuchao Liang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Weiye Wang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Huichao Guo
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Yan Guan
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yangyang Zhang
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Cuncun Wu
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Shijian Zheng
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
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Nayab F, Aamir M, Khan ME, Wali Q, Sher M, Khurshid H, Akhtar J. Color-tunable stable quasi-2D hybrid metal halide perovskites: synthesis, characterization, and optical analysis. Phys Chem Chem Phys 2024; 26:6058-6067. [PMID: 38295376 DOI: 10.1039/d3cp05563a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Metal halide perovskites show remarkable optical properties and useful applications in optoelectronic devices. However, the instability of three-dimensional (3D) metal halide perovskites limits their applications, leading to the emergence of more stable two-dimensional (2D) metal halide perovskites. Herein, we present a facile synthesis of the 2D hybrid metal halide perovskite (EDA)(MA)n-1PbnBr3n+1 (EDA: ethylene diammonium, MA: methylammonium), where n = 1-6, and MAPbBr3 perovskite layers using an anti-solvent co-precipitation technique. The synthesized materials exhibited tunable optical properties, and the color emissions of pure EDAPbBr4 and (EDA)(MA)2Pb3Br10 perovskites were successfully tailored by altering halide anion layers. The band gap decreases as the value of n in the (EDA)(MA)n-1PbnBr3n+1 compound increases from 1 to 6. The as-prepared materials were characterized using X-ray diffraction (XRD) technique, Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), photoluminescence spectroscopy (PL), scanning electron microscopy (SEM), and energy dispersive X-ray analysis (EDX). Finally, the stability of the 2D hybrid metal halide perovskite structures was evaluated under ambient conditions over different periods. Their tunable color emission was investigated and robust fluorescence was observed after 55 days. Thus, this study provides valuable insights into the synthesis and characterization of 2D hybrid metal halide perovskites for tunable color emission, highlighting their potential for use in various optoelectronic applications.
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Affiliation(s)
- Farva Nayab
- Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur-10250, AJK, Pakistan.
- Department of Chemistry, Allama Iqbal Open University, H-8, Islamabad 44000, Pakistan.
| | - Muhammad Aamir
- Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur-10250, AJK, Pakistan.
| | - Muhammad Ejaz Khan
- Department of Computer Engineering, National University of Technology, Islamabad 44000, Pakistan.
| | - Qamar Wali
- NUTECH School of Applied Sciences & Humanities, National University of Technology, Islamabad 44000, Pakistan.
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Muhammad Sher
- Department of Chemistry, Allama Iqbal Open University, H-8, Islamabad 44000, Pakistan.
| | - Hafsa Khurshid
- Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur-10250, AJK, Pakistan.
| | - Javeed Akhtar
- Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur-10250, AJK, Pakistan.
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