Correlation between grain size and optical properties in zinc oxide thin films

被引：160

作者：

Matsumoto, T

Kato, H

Miyamoto, K

Sano, M

Zhukov, EA

Yao, T

机构：

[1] Stanley Elect Corp, Ctr Res & Dev, Aoba Ku, Yokohama, Kanagawa 2250014, Japan

[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 07期

关键词：

D O I：

10.1063/1.1499991

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) and time-resolved PL spectra of zinc oxide (ZnO) films were investigated as a function of the grain size of the microcrystals. Correlation was found between the grain size and the optical properties-in the bound exciton states, both the PL intensity and PL decay time increased with increasing the grain size. This correlation can be well explained by the existence of nonradiative-surface and/or -interface states in the grain boundaries of ZnO microcrystals. (C) 2002 American Institute of Physics.

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页码：1231 / 1233

页数：3

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