Zinc vacancies and interstitials in ZnO nanorods

被引:6
作者
Boukos, N. [1 ]
Chandrinou, C. [1 ]
Travlos, A. [1 ]
机构
[1] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Athens 15310, Greece
关键词
ZnO nanorods; Photoluminescence; Intrinsic defects; Zn vacancies; Zn interstitials; OXIDE; DEFECTS; DONOR; FILMS;
D O I
10.1016/j.tsf.2011.10.138
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nominally undoped ZnO nanorods, grown by a chemical method, have been post-treated to intentionally incorporate high concentrations of zinc vacancies and zinc interstitials and were studied with electron microscopy and low temperature photoluminescence spectroscopy. The Zn-i are related to the 3.405 eV peak at 4.2 K, verifying that Zn-i is a shallow donor lying 30 meV below the conduction band minimum, while the acceptors V-zn are related to the 3.308 eV peak at 4.2 K and have an activation energy of 123 meV. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:4654 / 4657
页数:4
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