1. Counter electrode corrosion mechanism in Sn-contained perovskite solar cells.
- Author
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Zhou, Xiaolu, Xing, Yanjun, Deng, Zhiqiang, Zhao, Rui, Huang, Jiwen, Li, Jiaxin, Xiong, Jiaxing, Wang, Qiuxiang, Liu, Jian, Liu, Xiaohui, Huang, Like, Hu, Ziyang, Zhu, Yuejin, and Zhang, Jing
- Subjects
SOLAR cells ,ELECTRODES ,PEROVSKITE ,PRODUCTION sharing contracts (Oil & gas) ,TIN alloys - Abstract
In the recently researched Sn-contained perovskite solar cells (PSCs), limited work is focused on corrosion of a metal electrode, which is recognized as the obstacle of efficient and stable devices. Here, it is found that a pure Sn based PSC shows the most serious and quick corrosion of an Ag electrode, compared with Pb and Sn–Pb PSCs. I
2 , SnOX , and AgI are the main products of the aged Ag electrode in Sn based PSCs, which greatly differed from Pb and Sn–Pb PSCs. Oxidation of FASnI3 under O2 /H2 O produces aggressive I2 , together with gaseous FA and diffusive I− , degrading the PVK film and Ag electrode greatly. This work highlights the corrosion velocity and mechanism of Ag electrodes in Sn-contained PSCs, which may help to find out possible solutions to circumvent the instable issue. [ABSTRACT FROM AUTHOR]- Published
- 2023
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