Hu Qiang
Sichuan University
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Publication
Featured researches published by Hu Qiang.
Chinese Physics Letters | 2009
Hu Qiang; Wei Tongbo; Duan Ruifei; Yang Jiankun; Huo Ziqiang; Lu Tie-Cheng; Zeng Yiping
Thick GaN films of high quality are directly grown on wet-etching patterned sapphire in a vertical hydride vapour phase epitaxy reactor. The optical and structural properties of GaN films are studied using scanning electronic microscopy and cathodoluminescence. Test results show that initial growth of hydride vapour phase epitaxy GaN occurs not only on the mesas but also on the two asymmetric sidewalls of the V-shaped grooves without selectivity. After the two-step coalescence near the interface, the GaN films near the surface keep on growing along the direction perpendicular to the long sidewall. Based on Raman results, GaN of the coalescence region in the grooves has the maximum residual stress and poor crystalline quality over the whole GaN film, and the coalescence process can release the stress. Therefore, stress-free thick GaN films are prepared with smooth and crack-free surfaces by this particular growth mode on wet-etching patterned sapphire substrates.
Archive | 2014
Yang Jiankun; Wei Tongbo; Huo Ziqiang; Zhang Yonghui; Hu Qiang; Duan Ruifei; Wang Junxi
Archive | 2015
Ji Panfeng; Kong Qingfeng; Wang Wenjun; Hu Qiang; Ma Ping; Zeng Yiping; Wang Junxi; Li Jinmin
Archive | 2016
Li Jinmin; Wang Junxi; Yi Xiaoyan; Kong Qingfeng; Wang Wenjun; Hu Qiang; Yan Jianchang; Wei Tongbo; Ma Ping; Lu Hongxi; Ji Panfeng; Guo Jinxia
Archive | 2014
Ji Panfeng; Ma Ping; Wang Junxi; Hu Qiang; Ran Junxue; Zeng Yiping; Li Jinmin
Archive | 2013
Yang Jiankun; Wei Tongbo; Hu Qiang; Huo Ziqiang; Duan Ruifei; Wang Junxi
Archive | 2016
Jiang Guowen; Ran Junxue; He Bin; Li Tianyun; Hu Guoxin; Wang Qixin; Hu Qiang
Archive | 2016
Hu Guoxin; Xiao Yunzhang; Ran Junxue; Hu Qiang; He Bin; Li Tianyun; Zhu Zhengtao; Zhong Shan; Jiang Guowen; Wang Qixin
Archive | 2016
Jiang Guowen; Hu Guoxin; Wang Qixin; Hu Qiang
Archive | 2016
Hu Guoxin; Xiao Yunzhang; Hu Qiang; Ran Junxue; He Bin; Li Tianyun; Zhu Zhengtao; Zhong Shan; Jiang Guowen; Wang Qixin