Yajie Cheng, Junjie Ma, Huaiqing Luo, Meng Cai, Tangyue Xue, Guanghui Yu, Ziqiu Ren, Yanlin Song, Shou Peng, Yiqiang Zhang,
Nano Energy, Volume 115, 2023, 108690, ISSN 2211-2855,
https://doi.org/10.1016/j.nanoen.2023.108690
This study addresses the issue of undesirable segregation of inactive secondary phases in perovskite films, which negatively impacts charge-carrier transport and stability. The research delves into the chemical reactions and structural relationships responsible for this behavior. By converting the photoactive phase into an inactive one, a high-quality perovskite-PbI2 heterojunction film is created, improving carrier dynamics and achieving remarkable light resistance. The resulting perovskite solar cells reach an impressive efficiency of 24.23%. This work offers valuable insights into designing crystal structures for high-quality perovskite heterojunction devices.
How Paios was used
EIS, TPC, TPV, and capacitance-voltage (C-V) measurements were performed by Paios from Fluxim