期刊
JOURNAL OF LUMINESCENCE
卷 153, 期 -, 页码 321-325出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2014.03.056
关键词
ZnS nanowires; Green emission; Photoluminescence; Thermal evaporation
类别
资金
- National Foundation for Science and Technology Development (NAFOSTED), Vietnam [103.02.102.09]
The optical properties and morphological features of ZnS nanowires fabricated by a thermal evaporation process have been systematically studied. We have observed both ZnS nanowires and ZnO structures in one fabrication batch. One common green emission peak in the photoluminescence spectra centered at 516-520 nm appears and is independent of the don pants of the source materials and the catalytic metals. This peak is attributed to the contribution of ZnO structures by means of X-ray diffraction and Raman spectroscopic analysis. The exponential degradation of the photoluminescence intensity of ZnS and ZnO in air under UV laser irradiation not only indicates the significant role of oxygen diffusing into ZnO structures but also provides additional confirmation regarding the degradation that occurs inside ZnS nanowires. The emission model related to defects and ligand fields that occurs in both ZnS and ZnO as a result of this fabrication approach is discussed. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据