▎ 摘　　要

ZnO/graphene nano-films were directly prepared on Cu substrate via low pressure chemical vapor deposition (LPCVD) combined with a sol-gel method. The effects of the annealing temperature on the structure, morphology, the chemical state, component, and optical property of these ZnO/graphene nano-films were investigated. The XRD patterns demonstrate that the ZnO/graphene nanostructures exhibit the hexagonal wurtzite structure and the crystalline quality increases with increasing the annealing temperatures from 500 degrees C to 700 degrees C. When the annealing temperature reaches 700 degrees C, SEM analysis shows that sample film exhibits dense and uniform grains and smooth surface and the average grain size of film deposited 3 layers is about 35.7 nm. The PL measurement confirms that ZnO/graphene nano-film with deposited 3 layers at the annealing temperatures of 700 C has a better optical performance, due to the higher crystalline quality and lower defect concentration.