Citation: Zongsheng LI, Yichao WANG, Yujie WANG, Wenhao ZHU, Xiaoyao YIN, Wudan YANG, Songzhi ZHENG, Weihai SUN. Preparation of CsPbBr₃ perovskite solar cells via bottom interface modification with methylammonium chloride[J]. Chinese Journal of Inorganic Chemistry, ;2025, 41(9): 1805-1816. doi: 10.11862/CJIC.20250066 shu

Preparation of CsPbBr₃ perovskite solar cells via bottom interface modification with methylammonium chloride

Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Fujian Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry, School of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China

Corresponding author: Weihai SUN, sunweihai@hqu.edu.cn
Received Date: 26 February 2025
Revised Date: 7 July 2025

Figures(7)

By introducing methylammonium chloride (MACl) molecules onto the TiO₂ electron transport layer, the TiO₂/CsPbBr₃ interface was modified to passivate the existing interface defects, while improving the crystallinity and grain size of CsPbBr₃ films, thereby enhancing the carrier transport efficiency. Experimental results demonstrated that after modification with a 5.0 mg·mL^-1 MACl solution, the device achieved a maximum open-circuit voltage (V_OC) of 1.58 V, a short-circuit current density (J_SC) of 7.89 mA·cm^-2, a fill factor (FF) of 81.09%, and an optimal photoelectric conversion efficiency (PCE) of 10.10%.
- all-inorganic perovskite solar cells,
- CsPbBr₃,
- TiO₂,
- interface modification,
- methylammonium chloride
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Preparation of CsPbBr3 perovskite solar cells via bottom interface modification with methylammonium chloride

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Preparation of CsPbBr₃ perovskite solar cells via bottom interface modification with methylammonium chloride