Light-extraction enhancement of vertical-injection GaN-based light-emitting diodes fabricated with highly integrated surface textures
- Authors
- Kim, H.; Choi, K. -K.; Kim, K. -K.; Cho, J.; Lee, S. -N.; Park, Y.; Kwak, J. S.; Seong, T. -Y.
- Issue Date
- 1-6월-2008
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS LETTERS, v.33, no.11, pp.1273 - 1275
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS LETTERS
- Volume
- 33
- Number
- 11
- Start Page
- 1273
- End Page
- 1275
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123399
- DOI
- 10.1364/OL.33.001273
- ISSN
- 0146-9592
- Abstract
- We report on the fabrication of high-efficiency vertical-injection GaN-based light-emitting diodes (LEDs) fabricated with integrated surface textures. An optical ray-tracing simulation shows that the high integration of surface textures can effectively enhance the light-extraction efficiency. The integrated surface textures are fabricated on the top surface of LEDs by generating hexagonal cones on the periodically corrugated surfaces of n-GaN. Compared to reference LEDs without textures, LEDs fabricated with integrated surface textures show an enhancement of the output power by a factor of 2.59, which is in agreement with the calculated results. (C) 2008 Optical Society of America.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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