期刊
APPLIED PHYSICS LETTERS
卷 100, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3679708
关键词
-
资金
- National Science Foundation [DMR-0803276, ECCS-0923805]
- Norwegian Research Council
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0803276] Funding Source: National Science Foundation
We used depth-resolved cathodoluminescence spectroscopy (DRCLS) to describe the strong dependence of Li acceptor formation on thermal treatment in Li-doped ZnO. Within a 500-600 degrees C annealing temperature range, subsequent quenching ZnO leaves Li as interstitial donors, resulting in low room temperature resistivity, while slow cooling in air allows these interstitials to fill Zn vacancies forming Li acceptors 3.0 eV below the conduction band edge. DRCLS reveals an inverse relationship between the optical emission densities of lithium on zinc sites versus zinc vacancy sites, demonstrating the time dependence of Li interstitials to combine with zinc vacancies in order to form substitutional Li acceptors. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679708]
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