Hydrogen motion in the Cu-H complex in ZnO

被引：32

作者：

Boerrnert, F. ^{[1
]}

Lavrov, E. V. ^{[1
]}

Weber, J. ^{[1
]}

机构：

[1] Tech Univ Dresden, D-01062 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.75.205202

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Cu-H complex in ZnO consists of Cu on Zn site and a hydrogen atom bound to a nearby O atom, with the O-H bond oriented in the basal plane of the hexagonal lattice to the c axis. The motion of hydrogen in the Cu-H complex is studied by the stress-induced dichroism. Stress applied at room temperature along [1210] results in an alignment of the Cu-H bond. The reorientation process was found to be thermally activated with the activation energy of 0.52 +/- 0.04 eV. The connection of the hydrogen movement in the Cu-H complex with the hydrogen diffusion in ZnO is discussed, and consequences for the existence of interstitial hydrogen at room temperature are presented.

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页数：5

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