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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 11 — Jun. 1, 2008
  • pp: 1273–1275

Light-extraction enhancement of vertical-injection GaN -based light-emitting diodes fabricated with highly integrated surface textures

H. Kim, K.-K. Choi, K.-K. Kim, J. Cho, S.-N. Lee, Y. Park, J. S. Kwak, and T.-Y. Seong  »View Author Affiliations


Optics Letters, Vol. 33, Issue 11, pp. 1273-1275 (2008)
http://dx.doi.org/10.1364/OL.33.001273


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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.

© 2008 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Optoelectronics

History
Original Manuscript: February 19, 2008
Revised Manuscript: April 30, 2008
Manuscript Accepted: May 1, 2008
Published: May 30, 2008

Citation
H. Kim, K.-K. Choi, K.-K. Kim, J. Cho, S.-N. Lee, Y. Park, J. S. Kwak, and T.-Y. Seong, "Light-extraction enhancement of vertical-injection GaN-based light-emitting diodes fabricated with highly integrated surface textures," Opt. Lett. 33, 1273-1275 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-11-1273

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