Kanyaporn Thubthong, Psisit Kumnorkaew, Anusit Kaewprajak, Khathawut Lohawet, Wiyada Saennawa, Vinich Promarak, Yingyot Infahsaeng,
Thin Solid Films, Volume 741, 2022, 139012,
doi.org/10.1016/j.tsf.2021.139012
In this study, the researchers introduce a bis (perylene diimide) derivative as a buffer layer of the electron transporting layer by the rapid convective deposition technique. The maximum power conversion efficiency of 13.38% with less hysteresis is achieved from the device with perylene diimide as the electron transporting layer. Further, we found that the performance of the perylene-based device is enhanced due to the lower transporting resistance and the increasing electron mobilities. These results suggest that the perylene diimide derivatives can play a crucial influence in the charge transporting enhancement of perovskite solar cells.