摘要
Up to now,the maximum power conversion efficiency of organic–inorganic hybrid perovskite solar cells(PSCs)has reached 25.2%,however,stability is a key issue for commercialization.Cesium-based inorganic perovskite has great potential for improving the stability of the device.However,compared to organic–inorganic hybrid perovskite PSCs,open-circuit voltage loss is still the main reason for the low power conversion efficiency of inorganic PSCs,which is closely related to charge recombination at interface of the device or in the bulk of perovskite layer.
