Influence of postdeposition annealing on the properties of Ga2O3 films on SiO2 substrates

被引:36
作者
Kim, HW [1 ]
Kim, NH [1 ]
机构
[1] Inha Univ, Sch Mat Sci & Engn, Inchon 702751, South Korea
关键词
thin films; chemical synthesis; X-ray diffraction; luminescence;
D O I
10.1016/j.jallcom.2004.05.082
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
We have investigated the structural and optical properties of annealed gallium oxide (Ga2O3) film in the range of 750-1050degreesC, which had been grown on SiO2 substrates by the metal organic chemical vapor deposition (MOCVD) technique. We revealed that postdeposition annealing of amorphous Ga2O3 generated grains in beta-Ga2O3 phase. While photoluminescence spectra of as-deposited Ga2O3 films showed strong blue-green (BG) and ultraviolet (UV) emission, postdeposition annealing at high temperatures resulted in appearance of a longer wavelength UV band and a new green band. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:177 / 181
页数:5
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