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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 21, Iss. S1 — Jan. 14, 2013
  • pp: A1–A6

GaN light emitting diodes with wing-type imbedded contacts

Ray-Hua Horng, Kun-Ching Shen, Yu-Wei Kuo, and Dong-Sing Wuu  »View Author Affiliations

Optics Express, Vol. 21, Issue S1, pp. A1-A6 (2013)

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A wing-type imbedded electrodes was introduced into the lateral light emitting diode configuration (WTIE-LEDs) to reduce the effect of light shading of electrode in conventional sapphire-based LEDs (CSB-LEDs). The WTIE-LEDs with double-side roughened surface structures not only can eliminate the light shading of electrode and bonding wire, but also increase the light extraction and light output power. Contrast to CSB-LEDs, a 79% enhancement of output intensity in the WTIE-LED was obtained at 100 mA injection current. Similarly, the output power of packaged WTIE-LEDs was enhanced 59% higher compared with the packaged CSB-LEDs at the same injection condition. Therefore, using the imbedded contact to reduce light shading would be a promising prospective for LEDs to achieve high output power.

© 2012 OSA

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

ToC Category:
Light-Emitting Diodes

Original Manuscript: September 5, 2012
Revised Manuscript: October 14, 2012
Manuscript Accepted: October 15, 2012
Published: November 7, 2012

Ray-Hua Horng, Kun-Ching Shen, Yu-Wei Kuo, and Dong-Sing Wuu, "GaN light emitting diodes with wing-type imbedded contacts," Opt. Express 21, A1-A6 (2013)

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