A visible light detector based on a heterojunction phototransistor with a highly stable inorganic CsPbIxBr3−x perovskite and In–Ga–Zn–O semiconductor double-layer

An all-inorganic heterojunction phototransistor with perovskite (CsPbI_xBr_3−x) and IGZO is introduced to enhance the sensing performance of optoelectronic devices and to expand the detecting range from the ultraviolet to the visible light region.