▎ 摘　　要

All-inorganic cesium lead halide (CsPbX3, X=Cl, Br, I) perovskite nanocrystals (NCs) have attracted increasingly research interest as highly efficient light absorbers in optoelectronic devices for their outstanding optical properties. Here, a CsPbBr3NCs/graphene hybrid photodetector was demonstrated for efficient ultraviolet light detection, in which CsPbBr3NCs served as a light absorber, and graphene acted as a carrier transport expressway. The device exhibited high hole and electron mobilities of 1.7 x 10(3) cm(2)/V s and 6.4 x 10(3) cm(2)/V s in the dark. Under 405 nm illumination, the device showed high responsivity, specific detectivity, external quantum efficiency with maximum values of 3.4 A/W, 7.5 x 10(8)Jones, 10(3)%, respectively, and short rise/decay times of 7.9/125 ms. The hybrid PD has important prospects in the photodetection applications of optical communication, biological imaging, remote sensing, and other multifunction optoelectronics.