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Demonstration of nonpolar a-plane InGaN/GaN light emitting diode on r-plane sapphire substrate

Authors
Hwang, Sung-MinSeo, Yong GonBaik, Kwang HyeonCho, In-SungBaek, Jong HyeobJung, SukkooKim, Tae GeunCho, Meoungwhan
Issue Date
17-8월-2009
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.95, no.7
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
95
Number
7
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119484
DOI
10.1063/1.3206666
ISSN
0003-6951
Abstract
High crystalline a-plane (11 (2) over bar0) GaN epitaxial layers with smooth surface morphology were grown on r-plane (1 (1) over bar 02) sapphire substrate by metalorganic chemical vapor deposition. The full width at half maximum of x-ray rocking curve was measured as 407 arc sec along c-axis direction, and the root mean square roughness was 1.23 nm. Nonpolar a-plane InGaN/GaN light emitting diodes were subsequently grown on a-plane GaN template, and the optical output power of 0.72 mW was obtained at drive current of 20 mA (3.36 V) and 2.84 mW at 100 mA (4.62 V) with the peak emission wavelength of 477 nm. (C) 2009 American Institute of Physics. [DOI:10.1063/1.3206666]
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