▎ 摘 要
ZnO and graphene composites (ZnO/GR) were prepared by a simple and repeatable thermal evaporation process, and both the reduction of graphene oxide and the loading of ZnO were achieved. The structural and optical properties were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), atomic force microscope (AFM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) measurements. In the PL spectra, when the mass ratio of graphene to ZnO increased, a series of fluorescence quenching were found, and a regularly blue shift of the ultraviolet (UV) peak were also found, which might be attributed to the Burstein-Moss effect. (C) 2012 Elsevier B. V. All rights reserved.