Light-extraction enhancement of vertical-injection GaN-based light-emitting diodes fabricated with highly integrated surface textures.
Opt Lett
; 33(11): 1273-5, 2008 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-18516198
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.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article