Promise of commercialization: Carbon materials for low-cost perovskite solar cells

Cai Yu^{1, 2}, Liang Lusheng², Gao Peng^{2, †}

(color online) Optimized device structure. (a) Schematic representation of the TiO₂/Al₂O₃/NiO/carbon (MAPbI₃) based device. (b) Energy band diagram of the fabricated device configuration. Reprinted from Ref. [25].