C–H complex defects and their influence in ZnO single crystal

doi:10.1088/1674-1056/24/10/107704

Abstract Infrared absorption local vibration mode (LVM) spectroscopy is used to study hydrogen related defects in n-type ZnO single crystal grown by a closed chemical vapor transport (CVT) method under Zn-rich growth conditions, in which carbon is used as a transport agent. Two C-H complex related absorption peaks at 2850 cm^-1 and 2919 cm^-1 are detected in the sample. The formation of the C-H complex implies an effect of carbon donor passivation and formation suppression of H donor in ZnO. The influence of the complex defects on the electrical property of the CVT-ZnO is discussed based on Hall measurement results and residual impurity analysis.

Keywords: ZnO defects infrared absorption local vibrational mode (LVM)

Received: 30 March 2015
Revised: 04 May 2015
Accepted manuscript online:

PACS:	77.55.hf	(ZnO)
	91.60.Ed	(Crystal structure and defects, microstructure)
	07.57.Hm	(Infrared, submillimeter wave, microwave, and radiowave sources)
	63.20.Pw	(Localized modes)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61474104).

Corresponding Authors: Zhao You-Wen
E-mail: zhaoyw@semi.ac.cn

Cite this article:

Xie Hui (谢辉), Zhao You-Wen (赵有文), Liu Tong (刘彤), Dong Zhi-Yuan (董志远), Yang Jun (杨俊), Liu Jing-Ming (刘京明) C–H complex defects and their influence in ZnO single crystal 2015 Chin. Phys. B 24 107704

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C–H complex defects and their influence in ZnO single crystal

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