期刊
VACUUM
卷 94, 期 -, 页码 74-77出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2013.01.020
关键词
Photoluminescence; ZnO; MgZnO; Thin films; Nanostructure
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions
We make a comparison on the photoluminescence (PL) from the Mg0.1Zn0.9O film and ZnO nanoflakes (NFs) over the range of 10-300 K. It is clear that their PL spectra are dominated by the radiative recombination of localized or bound excitons at 10 K. As the temperature increases, these excitons are gradually converted toward free excitons (FX) or annihilate through a thermal dissociation/activation or a non-radiative recombination channel. In addition, it is found that the quenching behavior of integrated PL intensity exhibit two activation energies in the different temperature ranges for the NFs, suggesting that a re-localization of FX might occur during the range of 70-300 K. (C) 2013 Elsevier Ltd. 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