Efficient CsPbBr3 Perovskite Solar Cells with Storage Stability > 340 Days

For CsPbBr3 perovskite materials, it is especially important to reduce interface defects, suppress non-radiative recombination, and improve morphology to achieve highly efficient and stable CsPbBr3 perovskite solar cells (PSCs). Herein, we reported a facile but highly efficient approach in additive...

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Published in:Energies (Basel) 2022-10, Vol.15 (20), p.7740
Main Authors: Hou, Shaochuan, Wu, Siheng, Li, Xiaoyan, Yan, Jiahao, Xing, Jie, Liu, Hao, Hao, Huiying, Dong, Jingjing, Huang, Haochong
Format: Article
Language:English
Subjects:
Carbon
Crystal defects
CsPbBr3
Cytology
Energy conversion efficiency
Ethanol
Grain boundaries
Grain size
High temperature
Humidity
in ambient air
Iodides
Morphology
PEAI
perovskite solar cells
Perovskites
Radiative recombination
Recombination
Shelf life
Solar cells
Spectrum analysis
stability
Storage stability
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Summary:For CsPbBr3 perovskite materials, it is especially important to reduce interface defects, suppress non-radiative recombination, and improve morphology to achieve highly efficient and stable CsPbBr3 perovskite solar cells (PSCs). Herein, we reported a facile but highly efficient approach in additive engineering for improving the efficiency and stability of CsPbBr3 PSCs. It was found that phenethylammonium iodide can passivate interface defects, suppress non-radiative recombination, and increase the grain sizes of CsPbBr3 films by optimizing crystal quality and interface contact. As a result, a carbon-based CsPbBr3 PSC with power conversion efficiency > 8.51%, storage stability > 340 days, and excellent harsh stability under high temperature and humidity, has been achieved.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15207740