The family of perovskite materials derived from the crys-tal structure of the mineral CaTiO3,which was first reported in 1839[1].Then a series of materials with perovskite struc-ture were discovered.Most perovskite materials have the ABX3 stoichiometry,in which A is monovalent or divalent cation,B is divalent or tetravalent cation,and X is mono-valent or divalent anion.