Material capable of being used for perovskite cell, perovskite cell, photovoltaic module, system and electric device

The invention relates to a material capable of being used for a perovskite battery, which takes a benzodithiophene ring as a mother nucleus, at least any thiophene ring in the benzodithiophene ring is connected with a triarylamine group, and a benzene ring of the benzodithiophene ring is connected with an alkyl ammonium salt group; the invention also relates to a corresponding perovskite cell, a photovoltaic module, a system and an electric device. When the material capable of being used for the perovskite cell is applied to the perovskite cell as a hole transport layer or a passivation layer, the photoelectric conversion efficiency and the device stability of the perovskite cell can be improved.