Carbon-Based CsPbI3 Perovskite Solar Cells

This is the authors' abstract. We don't add key points for this paper.

The perovskite solar cells (PSCs) based on carbon electrode (C-PSCs) are expected to address the instability issues faced by conventional PSCs. Recently, inorganic perovskites have been widely used as the light absorber in C-PSCs, which tended to further enhance device stability. Among various inorganic perovskites, CsPbI3 perovskite has been showing the greatest promise due to its suitable band gap (~ 1.7 eV) and high chemical stability. Benefiting from the progresses on phase stability, crystal quality and surface defect passivation, CsPbI3 C-PSCs have achieved the efficiency of over 15% and exhibited considerable enhancement in device stability. In this perspective, the main advances on CsPbI3 C-PSCs will be highlighted and the future research directions will be proposed.