Effects of Cesium/Formamidinium Co-Addition to Perovskite Solar Cells

Engineering Proceedings

article

Ren Nonomura¹  Takeo Oku¹  Iori Ono¹  Atsushi Suzuki¹  Masanobu Okita²  Sakiko Fukunishi²  Tomoharu Tachikawa²  Tomoya Hasegawa² 

[1] Department of Materials Science, The University of Shiga Prefecture;Osaka Gas Chemicals Co., Ltd.

关键词: perovskite;    crystal structure;    Pb free;    double perovskite;    dimensionality;    halide;    solar cell;    low-dimensional perovskite;   

DOI  :  10.3390/ASEC2022-13789

来源: mdpi

【 摘 要 】

In this study, the stabilities and conversion efficiencies of perovskite solar cells including cesium (Cs) or formamidinium (FA) at the CH₃NH₃ site were investigated. The additive effects on the photovoltaic properties and crystalline structures were investigated via current–voltage measurements, X-ray diffraction, and scanning electron microscopy. The simultaneous co-addition of Cs and FA to the CH3NH3PbI3 perovskite crystal improved the photovoltaic properties, which may be due to the suppression of the decomposition of the perovskite crystals and the promotion of crystal growth.

【 授权许可】

Unknown