Effects of substrate temperature upon the properties of ZnMgTe layer grown by MOVPE

被引：4
|
作者：
Saito, K. [1 ]
Inoue, Y. [2 ]
Hayashida, Y. [2 ]
Tanaka, T. [2 ]
Guo, Q. X. [1 ]
Nishio, M. [2 ]
机构：
[1] Saga Univ, Synchrotron Light Applicat Ctr, Saga 8408502, Japan
[2] Saga Univ, Dept Elect & Elect Engn, Fac Sci & Engn, Saga 8408502, Japan
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 06期
关键词：
ZnMgTe; MOVPE; Substrate temperature; Optical properties; Surface morphology; VAPOR-PHASE EPITAXY; ZNTE; DEPOSITION; CRYSTALS;
D O I：
10.1016/j.apsusc.2011.03.085
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of substrate temperature upon the optical property, composition and surface morphology have been investigated on nominally undoped Zn1-xMgxTe layers grown on (1 0 0) ZnTe substrates by atmospheric pressure metal organic vapor phase epitaxy (MOVPE). It was found that Mg composition increases with decreasing substrate temperature. The result of low temperature photoluminescence (PL) measurement suggests that the optical quality of Zn1-xMgxTe layers becomes better with decreasing substrate temperature. On the other hand, there is a narrow range of optimal substrate temperature for a smooth surface morphology. For all the layers, a two-mode behavior with ZnTe- and MgTe-like longitudinal optical phonon modes was confirmed by Raman scattering. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：2137 / 2140
页数：4
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