Zn2LiGaO4, Wurtzite- Derived Wide Band Gap Oxide

被引:25
作者
Omata, Takahisa [1 ]
Kita, Masao [2 ]
Nose, Katsuhiro [1 ]
Tachibana, Kosuke [1 ]
Otsuka-Yao-Matsuo, Shinya [1 ]
机构
[1] Osaka Univ, Div Mat & Mfg Sci, Grad Sch Engn, Suita, Osaka 5650871, Japan
[2] Toyama Natl Coll Technol, Dept Ecomat Engn, Toyama 9398630, Japan
关键词
CRYSTAL-STRUCTURE; ZINC-OXIDE; GROWTH; ALLOY;
D O I
10.1143/JJAP.50.031102
中图分类号
O59 [应用物理学];
学科分类号
摘要
The phase that appeared in the pseudo-binary LiGaO2-ZnO system was investigated by powder X-ray diffraction (XRD), selected area electron diffraction by transmission electron microscopy (TEM-SAD) and Raman spectroscopy, especially focusing on the 0.5(LiGaO2)(1/2) - 0.5ZnO composition. A new quaternary wurtzite-derived Zn2LiGaO4 phase was found in this system. The TEM-SAD indicated that the phase possesses an incommensurately modulated ordering. The optical energy band gap of Zn2LiGaO4 was determined to be similar to 4: 0 eV from its diffuse reflectance and photoluminescence spectra; and it was suggested that the Zn2LiGaO4 was a direct semiconductor. (C) 2011 The Japan Society of Applied Physics
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页数:4
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