About the oxygen diffusion mechanism in ZnO

被引:36
作者
Sabioni, ACS [1 ]
机构
[1] Univ Fed Ouro Preto, Dept Fis, Lab Difusao Mat, BR-34500000 Ouro Preto, Brazil
关键词
ZnO; Al-doped ZnO; oxygen self-diffusion; diffusion mechanism;
D O I
10.1016/j.ssi.2003.08.045
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The more recent works dealing with the study of oxygen self-diffusion in ZnO have shown that the oxygen diffusion takes place by means of doubly negatively ionized interstitial oxygen. This oxygen diffusion mechanism in zinc oxide is reviewed and based on experimental data of oxygen self-diffusion and electrical conductivity; for Al-doped and undoped ZnO, it is suggested that oxygen self-diffusion in ZnO takes place by means of an interstitial mechanism, but with the interstitial oxygen having a null or a single negative effective charge. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:145 / 148
页数:4
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