Lateral epitaxial overgrowth of fully coalesced a-plane GaN on r-plane sapphire

被引:56
作者
Chen, CQ [1 ]
Yang, JW [1 ]
Wang, HM [1 ]
Zhang, JP [1 ]
Adivarahan, V [1 ]
Gaevski, M [1 ]
Kuokstis, E [1 ]
Gong, Z [1 ]
Su, M [1 ]
Khan, MA [1 ]
机构
[1] Univ S Carolina, Dept Elect Engn, Columbia, SC 29208 USA
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2003年 / 42卷 / 6B期
关键词
ELOG; a-plane; GaN; non-polar; wing tilt; stimulated emission;
D O I
10.1143/JJAP.42.L640
中图分类号
O59 [应用物理学];
学科分类号
摘要
Fully coalesced epitaxial laterally overgrown a-plane GaN films were characterized for their structural and optical quality. The films had a very smooth surface with a root mean square roughness as low as 4.6 Angstrom for a 5 mum x 5 mum atomic force microscope scan area. They exhibited a wing tilt of only 0.27degrees and optically pumped stimulated emission, which establish their high structural and optical quality. These non-polar films are ideal for fabricating high-efficiency optoelectronic and electronic devices.
引用
收藏
页码:L640 / L642
页数:3
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