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High-efficiency inorganic perovskite solar cell based on a stripping and idling assisted growing technique(PDF)

Journal of Shenzhen University Science and Engineering[ISSN:1000-2618/CN:44-1401/N]

2022 Vol.39 No.4(363-488)
Research Field:
Optoelectronics Engineering


High-efficiency inorganic perovskite solar cell based on a stripping and idling assisted growing technique
YAN Huibo ZHOU Dingjian HUANG Jincheng LIU Jun WANG Ming LUO Zhongming LUO Xi TIAN Mengyao ZHENG Ting LI Guijun and XU Ping
College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, Guangdong Province, P. R. China
optoelectronic technology inorganic perovskites solar cells CsPbI2Br stripping and idling assisted growing power conversion efficiency
Cesium lead iodide dibromide (CsPbI2Br) perovskite is an ideal material for inorganic perovskite solar cells due to its suitable tolerance factor and good thermal stability. However, the defects of low power conversion efficiency and poor device reproducibility hinder the further improvement of the performance of inorganic CsPbI2Br solar cells. By studying the preparation process of CsPbI2Br inorganic perovskite solar cells, we find that the film-forming environment has a great influence on the uniformity, optical properties and device performance repeatability of CsPbI2Br films. In this paper, a stripping and idling assisted growing process strategy is proposed to obtain CsPbI2Br films with large grain size, high crystallinity, and low trap-defects density. The power conversion efficiency of CsPbI2Br perovskite solar cells reaches 14.1%. More importantly, this method greatly reduces the influence of ambient conditions on the film quality and improves the reproducibility of the device.


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