The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

2023年9月5日 〜 2023年10月31日
Nagoya Congress Center

15:00 〜 15:15

[D-1-03] Clarification of the charge transfer mechanism at the HTL/PVK interface of RP tin-based perovskite solar cells using Operando ESR measurements

○YIZHOU CHEN1, Seira Yamaguchi1, Atsushi Sato1, Dong Xue1, Kazuhiro Marumoto1,2 (1. Univ. of Tsukuba (Japan), 2. TREMS, Univ. of Tsukuba (Japan))

https://doi.org/10.7567/SSDM.2023.D-1-03

Operando ESR measurements were conducted in order to investigate the charge transfer mechanism of RP tin-based perovskite solar cells. It is found that reverse electron transfer occurs from PVK layer to HTL layer under simulated solar irradiation, which enhances the band bending at the interface. As a result, interface recombination is inhibited, and the VOC of the solar cell devices increases.