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Optical Engineering

Enhancement of light extraction of GaN-based light-emitting diodes with a microstructure array
Author(s): Ching-Cherng Sun; Chao-Ying Lin; Tsung-Xian Lee; Tsung-Hsun Yang
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Paper Abstract

An optical model for simulating light extraction efficiency of a GaN-based LED chip is presented. We propose the introduction of a periodic sharpening structure on the interface between the sapphire and the n-GaN of a GaN-based LED to obtain as high as 78% light extraction efficiency.

Paper Details

Date Published: 1 August 2004
PDF: 2 pages
Opt. Eng. 43(8) doi: 10.1117/1.1768943
Published in: Optical Engineering Volume 43, Issue 8
Show Author Affiliations
Ching-Cherng Sun, National Central Univ. (Taiwan)
Chao-Ying Lin, National Central Univ. (Taiwan)
Tsung-Xian Lee, National Central Univ. (Taiwan)
Tsung-Hsun Yang, National Central Univ. (Taiwan)


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