Growth and Band Gap Control of Corundum-Structured α-(AlGa)2O3 Thin Films on Sapphire by Spray-Assisted Mist Chemical Vapor Deposition

被引:129
作者
Ito, Hiroshi [1 ]
Kaneko, Kentaro [1 ]
Fujita, Shizuo [2 ]
机构
[1] Kyoto Univ, Dept Elect Sci & Engn, Kyoto 6158510, Japan
[2] Kyoto Univ, Photon & Elect Sci & Engn Ctr, Kyoto 6158510, Japan
关键词
BETA-GA2O3; SINGLE-CRYSTALS; CONDUCTIVITY;
D O I
10.1143/JJAP.51.100207
中图分类号
O59 [应用物理学];
学科分类号
摘要
Following the previous achievement of highly crystalline alpha-Ga2O3 thin films on c-plane sapphire, the growth of corundum-structured alpha-(AlxGa1-x)(2)O-3 was examined aiming at the future application of alpha-(AlxGa1-x)(2)O-3/Ga2O3 heterostructures to power devices and other functional devices. The results show the control of x and band gap up to 0.81 and 7.8 eV, respectively, maintaining the dominant corundum structure. The transmission electron microscope observation suggested the formation of the crystallographically good interface of alpha-(AlxGa1-x)(2)O-3/Ga2O3 without the severe generation of threading dislocation lines from the interface. (C) 2012 The Japan Society of Applied Physics
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页数:3
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