期刊
OPTICS COMMUNICATIONS
卷 284, 期 14, 页码 3558-3561出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2011.03.078
关键词
Photoluminescence; ZnO nanostructure; Green emission; UV emission; Optical properties of nanostructures
类别
In this work, optical properties of ZnO nanostructures prepared by chemical vapor deposition under different conditions were investigated. ZnO nanostructures were characterized by electron microscopy and photoluminescence. A high intensity green emission and a narrow UV emission band are observed in photoluminescence spectra of ZnO nanostructures related to the below-band-gap and band-edge that their intensities depend on the morphology of the nanostructures. It is considered that the green emission is originated from structural defects. In addition, the influence of thermal treatment and dopants such as iron and copper, on the photoluminescence (PL) properties of the ZnO nanostructures was investigated. (c) 2011 Elsevier B.V. All rights reserved.
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