• 文献标题:   Vacancy filling effect of graphene on photoluminescence behavior of ZnO/graphene nanocomposite
  • 文献类型:   Article
  • 作  者:   LEE E, KIM JY, KWON BJ, JANG ES, AN SJ
  • 作者关键词:   graphene oxide, graphene, zno, photoluminescence, optoelectronic propertie
  • 出版物名称:   PHYSICA STATUS SOLIDIRAPID RESEARCH LETTERS
  • ISSN:   1862-6254 EI 1862-6270
  • 通讯作者地址:   Korea Inst Ceram Engn Technol
  • 被引频次:   5
  • DOI:   10.1002/pssr.201409225
  • 出版年:   2014

▎ 摘  要

We report on the aerosol synthesis and optical characterization of ZnO/unoxidized graphene (UG) platelets nanocomposite films with high optical transparency (>85% at visible wavelengths). The ZnO/UG composite films, in which UG nanoplatelets are embedded in nano-grained ZnO, were fabricated from colloidal suspensions of UG platelets with an aqueous zinc precursor. From photoluminescence (PL) spectra of the UG composite films, it was found that PL intensity decreases with the addition of UG platelets. The features of PL intensity in the UG composites are in contrast to that of ZnO/graphene oxide (G-O) platelets composites, and can be explained by the absence of an oxygen vacancy filling effect, due to the unoxidized nature of UG and an increase in defect sites in its composites. ((c) 2014 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)