TITLE

Enhancement of light extraction from GaN-based green light-emitting diodes using selective area photonic crystal

AUTHOR(S)
Ja-Yeon Kim; Min-Ki Kwon; Seong-Ju Park; Sang Hoon Kim; Ki-Dong Lee
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/21/2010, Vol. 96 Issue 25, p251103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the development of a GaN-based green light-emitting diode (LED) with a selective area photonic crystal (SPC) structure, which was formed outside the p-bonding electrode on p-GaN. As a result, the optical output power of LEDs with SPC was enhanced by 78% compared to that without PC. In addition, the forward voltage, series resistance, and leakage current of LEDs with SPC were remarkably improved. These results show that the light extraction efficiency of green LEDs can be greatly increased using the SPC structure, with no degradation of electrical properties.
ACCESSION #
51709520

 

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