Thermally stimulated current studies on deep levels in hydrothermally grown single crystal ZnO bulk

被引：27

作者：

Kuriyama, K. ^{[1
]}

Ooi, M.

Matsumoto, K.

Kushida, K.

机构：

[1] Hosei Univ, Coll Engn, Tokyo 1848584, Japan

[2] Hosei Univ, Res Ctr Ion Beam Technol, Tokyo 1848584, Japan

[3] Osaka Kyoiku Univ, Dept Arts & Sci, Osaka 5828582, Japan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 24期

关键词：

D O I：

10.1063/1.2405867

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The evaluation of the deep levels in hydrothermally grown ZnO single crystal bulk is studied using a thermally stimulated current (TSC) method with excitation above (below) the band gap. Two broad TSC spectra are resolved by four traps, P-1 (165 meV), P-2 (255 meV), P-3 (300 meV), and P-4 (375 meV). P-2, P-3, and P-4 traps are responsible for excitation by the blue and green lights, but P-1 trap is weakly responsible. Possible origins of P-1 and P-2 are attributed to native point defects and Li acceptor, respectively. P-3 is correlated to oxygen vacancy as an origin of the green luminescence. (c) 2006 American Institute of Physics.

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页数：3

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