期刊
JOURNAL OF APPLIED PHYSICS
卷 115, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4868338
关键词
-
资金
- MOE Tier 1 Grant [RG 43/12]
- Si COE Program
- NSFC [61274086]
Dielectric function, band gap, and exciton binding energies of ultrathin ZnO films as a function of film thickness have been obtained with spectroscopic ellipsometry. As the film thickness decreases, both real (epsilon(1)) and imaginary (epsilon(2)) parts of the dielectric function decrease significantly, and epsilon(2) shows a blue shift. The film thickness dependence of the dielectric function is shown related to the changes in the interband absorption, discrete-exciton absorption, and continuum-exciton absorption, which can be attributed to the quantum confinement effect on both the band gap and exciton binding energies. (C) 2014 AIP Publishing LLC.
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