Enhancement of light extraction of GaN-based light-emitting diodes with a microstructure array

Ching Cherng Sun, Chao Ying Lin, Tsung Xian Lee, Tsung Hsun Yang

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

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.

Original languageEnglish
Pages (from-to)1700-1701
Number of pages2
JournalOptical Engineering
Volume43
Issue number8
DOIs
StatePublished - Aug 2004

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