期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 147, 期 3, 页码 1134-1139出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2014.06.069
关键词
Semiconductors; Surface properties; Optical properties; Photoluminescence spectroscopy; X-ray photo-emission spectroscopy
资金
- National Natural Science Foundation of China [21075058, 21127006, 21105041]
- Natural Science Foundation of Shandong Province [ZR2010BZ004, JQ201106 ZR2012BM007, BS2013CL005]
- Shandong Academy of Agricultural Sciences
In this work, UV-vis diffuse reflectance spectra were applied to study the bulk band gap of ZnO nano-structures. Photoluminescence spectra and O1s XPS spectra of as-prepared ZnO nanostructures were analyzed by fitting with the Gaussian function, respectively. The components deconvoluted from 0 Is XPS spectra were applied to interpret the photoluminescence properties of ZnO nanostructures. The results indicated that the green emission band in PL spectrum of ZnO nanostructures is associated with the chemisorbed O in the O Is XPS spectra. A facet-dependent optical property was found for ZnO nanostructure. (C) 2014 Elsevier B.V. All rights reserved.
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