期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 582, 期 -, 页码 29-32出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.07.197
关键词
ZnO nanorods; Graphene oxide; Reduced graphene oxide; Photoluminescence
资金
- Natural Science Foundation of China [91123019, 61176056]
- International Collaboration Program
- 13115 Innovation Engineering Project of Shaanxi Province [2013KW-12-05, 2010ZDKG-58]
- open projects from Institute of Photonics and Photo-Technology, Provincial Key Laboratory of Photo-electronic Technology, Northwest University, China
ZnO nanorods (ZnO NRs) coated with graphene oxide (ZnO-GO) and reduced graphene oxide sheets (ZnO-RGO) were prepared on indium tin oxide (ITO) substrates. The crystal structures, morphology and optical properties were analyzed by using X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) images, absorption spectra and photoluminescence (PL) spectra, respectively. A comparison between PL properties from ZnO-GO and ZnO-RGO were studied. Results indicated that the peak at 442 nm and a broad band at 450-600 nm of ZnO NRs show PL quenching after coating with GO sheets. As coating with RGO sheets, the extent of PL quenching increases. It is interesting to note that as ZnO NRs coated with RGO sheets, the intensity of PL peak at 390 nm significantly increased. The enhanced PL emission research in ZnO-RGO is directed toward development of the nextgeneration'' optoelectronics devices related with graphene materials. (c) 2013 Elsevier B.V. All rights reserved.
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