▎ 摘　　要

We demonstrate a highly sensitive hybrid photodetector based on graphene-CsPbBr3-xIx perovskite nanocrystals. This hybrid photodetector exhibits a high photo-responsivity of similar to 10(8) A W-1 and detectivity of similar to 10(16) jones at an irradiance power of 0.07 mu W cm(-2) under 405 nm illumination.