▎ 摘　　要

NOVELTY - The utility model claims a titanium-niobate and cadmium sulphide is perovskite solar battery of the electronic transmission layer, wherein the structure of said solar energy battery from up to down orderly as the transparent conductive substrate 1, titanium niobate and cadmium sulphide composite film 2, perovskite film 3, the graphene film 4, metal electrode 5. The utility model has the following advantages: on one hand, using titanium niobate and cadmium sulphide composite films in which synergistic promoting effect of cadmium sulfide generated between the titanium-niobium acid effectively inhibits the photon-generated carrier of composite, which greatly increases the photocurrent, improve the photoelectric conversion efficiency of the perovskite solar energy battery, on the other hand, using conductivity and impermeability of good graphene, which not only can effectively improve the mobility of the carrier, but also can effectively prevent perovskite film decomposed by water and oxygen, which greatly improves the stability of the perovskite solar energy battery.