Charge Transport in Perylene Based Electron Transporting Layer for Perovskite Solar Cells
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.