The triangular pits eliminate of (11(2)over-bar0) a-plane GaN growth by metal-orgamic chemical vapor deposition

被引:5
作者
Xu Sheng-Rui [1 ]
Zhang Jin-Cheng [1 ]
Li Zhi-Ming [1 ]
Zhou Xiao-Wei [1 ]
Xu Zhi-Hao [1 ]
Zhao Guang-Cai [1 ]
机构
[1] Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Minist Educ, Xian 710071, Peoples R China
关键词
GaN; AFM; HRXRD; nonpolar;
D O I
10.7498/aps.58.5705
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Nonpolar a-plane (11 (2) over bar0) GaN has been grown on r-plane (1 (1) over bar 02) sapphire by metal-orgamic chemical vapor deposition. The crystal quality has been greatly improved by using the AlGaN multiple-quantum-well interlayers. The surface morphology and the crystal quality were investigated by high resolution X-ray diffraction and atomic force microscopy. The triangular pits were eliminated completely. The precession of the X-ray diffraction symmetric reflection peak full with width at half maximum of (11 (2) over tilde0) is 680 ''.
引用
收藏
页码:5705 / 5708
页数:4
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