Y. Wang, Y. Yang, F. Uhlik, Z. Slanina, D. Han, Q. Yang, Q. Yuan, Y. Yang, D.-Y. Zhou, and L. Feng. Enhancing photovoltaic performance of inverted perovskite solar cells via imidazole and benzoimidazole doping of {PC}61BM electron transport layer. Elsevier BV, volume 78, March 2020.