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High-Performance GaN-Based Vertical-Injection Light-Emitting Diodes With TiO2–SiO 2 Omnidirectional Reflector and n-GaN Roughness

✍ Scribed by Huang, H.W.; Kuo, H.C.; Lai, C.F.; Lee, C.E.; Chiu, C.W.; Lu, T.C.; Wang, S.C.; Lin, C.H.; Leung, K.M.


Book ID
119803514
Publisher
IEEE
Year
2007
Tongue
English
Weight
316 KB
Volume
19
Category
Article
ISSN
1041-1135

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## Abstract InGaN/GaN blue light‐emitting diodes (LEDs) on sapphire substrates with a SiO~2~/TiO~2~ Bragg reflector were fabricated. The deposited SiO~2~/TiO~2~ Bragg reflectors exhibit a high reflectivity of up to nearly 96.9% at about 460 nm. When the InGaN/GaN LEDs with a SiO~2~/TiO~2~ Bragg ref