• 文献标题:   Blue-shift of UV emission in ZnO/graphene composites
  • 文献类型:   Article
  • 作  者:   YANG JH, ZHAO XT, SHAN XN, FAN HG, YANG LL, ZHANG YJ, LI XY
  • 作者关键词:   zno, graphene, blue shift, bursteinmoss effect, pl quenching
  • 出版物名称:   JOURNAL OF ALLOYS COMPOUNDS
  • ISSN:   0925-8388 EI 1873-4669
  • 通讯作者地址:   Jilin Normal Univ
  • 被引频次:   27
  • DOI:   10.1016/j.jallcom.2012.12.098
  • 出版年:   2013

▎ 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.