期刊
PHYSICA B-CONDENSED MATTER
卷 340, 期 -, 页码 221-224出版社
ELSEVIER
DOI: 10.1016/j.physb.2003.09.023
关键词
zinc oxide; hydrogen; FTIR; polarization
Zinc oxide (ZnO) has shown great promise as a wide band gap semiconductor with optical, electronic, and mechanical applications. First-principles investigations by C. G. Van de Walle (Phys. Rev. Lett. 85 (2000) 1012) suggest that hydrogen may act as a shallow donor in ZnO. These same predictions also apply to deuterium (D). Using IR spectroscopy we have observed O-H and O-D stretch modes at 3326.3 and 2470.3 cm(-1), respectively, in the same sample at a temperature of 14 K. These frequencies are in good agreement with the theoretical predictions for hydrogen and deuterium in an antibonding configuration. We have also performed preliminary polarization measurements at room temperature showing that the dipole of the O-H complex does not lie parallel to the c-axis of wurtzite ZnO. (C) 2003 Elsevier B.V. All rights reserved.
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