Defect Passivation of CsPbBr3 with AgBr for HighPerformance All-Inorganic Perovskite Solar Cells

Shoulong,Chen1; Xiaolin,Liu2; Zhen,Wang2; Wenhui,Li1; Xiaoyu,Gu1; Jia,Lin3; Tieying,Yang2; Xingyu,Gao2; Aung Ko Ko,Kyaw1

2021-05-05

10.1002/aesr.202000099

Advanced Energy and Sustainability Research   影响因子和分区

2699-9412

CsPbBr3-based perovskite solar cells possess both high humidity and temperature tolerance, and also have excellent long-term stability in air, but the defect states in the bulk perovskite are always an obstacle for further improvement of their efficiency. Herein, a doping strategy is demonstrated in which AgBr is directly added to the precursor solution in the first step. An appropriate amount of Ag+ ion doping can passivate the defects in bulk or at grain boundaries, reduce the defect density of the film, and form a pinhole-free film. Finally, the best power conversion efficiency of the solar cell reaches to 6.92% and exhibits a long-term stability in a humid environment. This work provides a simple and effective method for improving the quality of CsPbBr3 film and the performance of CsPbBr3-based perovskite solar cells.

defect passivation doping grain boundary passivation perovskite solar cells

ESCI

英语

第一 ; 通讯

Guangdong Basic and Applied Basic Research Foundation[2020A1515010916] ; Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting[2017KSYS007] ; High-level University Fund[G02236004] ; National Natural Science Foundation of China[51927801,61875119,61675217,21972017,51971128]

Science & Technology - Other Topics ; Energy & Fuels ; Materials Science

Green & Sustainable Science & Technology ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000783857000005

Wiley

人工提交

1.Guangdong University Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055, China
2.Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204, China
3.Department of Physics Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power Shanghai University of Electric Power

Shoulong,Chen,Xiaolin,Liu,Zhen,Wang,et al. Defect Passivation of CsPbBr3 with AgBr for HighPerformance All-Inorganic Perovskite Solar Cells[J]. Advanced Energy and Sustainability Research,2021,2(6):2000099.

Shoulong,Chen.,Xiaolin,Liu.,Zhen,Wang.,Wenhui,Li.,Xiaoyu,Gu.,...&Aung Ko Ko,Kyaw.(2021).Defect Passivation of CsPbBr3 with AgBr for HighPerformance All-Inorganic Perovskite Solar Cells.Advanced Energy and Sustainability Research,2(6),2000099.

Shoulong,Chen,et al."Defect Passivation of CsPbBr3 with AgBr for HighPerformance All-Inorganic Perovskite Solar Cells".Advanced Energy and Sustainability Research 2.6(2021):2000099.