Ultra-thin MoOx as cathode buffer layer for the improvement of all-inorganic CsPbIBr2 perovskite solar cells

A simple approach using a low temperature stable-transition-film (STF) to prepare highly-dense and pinhole-free CsPbIBr2 thin film with high bromine content, and a new structural design (FTO/NiOx/CsPbIBr2/MoOx/Au) of MoOx independently buffered all-inorganic perovskite solar cells (PSCs) toward long-term thermal stability.304