期刊
JOURNAL OF CRYSTAL GROWTH
卷 401, 期 -, 页码 588-592出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jcrysgro.2014.02.032
关键词
Crystal structure; Chemical vapor deposition processes; Oxides; Semiconducting ternary compounds
资金
- Japan Society for the Promotion of Science (JSPS)
- The research and development project for innovation technique of energy conservation of the New Energy and Industrial Technology Development Organisation (NEDO)
- Grants-in-Aid for Scientific Research [25286050] Funding Source: KAKEN
We report fundamental issues and prospects of the rhombohedral corundum-structured III-oxide (III-O) alloy system constituted with alpha-M2O3 (M=metal element) materials. Successful epitaxial growth of alpha-Ga2O3 and alpha-In2O3 on sapphire (alpha-Al2O3) substrates has enabled the growth of alpha-(Al,Ga,In)(2)O-3 semiconductor alloys, achieving the band gap engineering from 3.8 eV (an experimental value) to 8.8 eV. Transition-metal corundum-structured oxides (M=Cr, Fe, V, Ti) can be alloyed with the alpha-(Al,Ga,In)(2)O-3 semiconductor alloys, leading to function engineering, that is, to tailor the materials functions. The corundum-structured III-O alloys will contribute to novel multifunctional devices in the future. (C) 2014 Elsevier B.V. All rights reserved.
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