Position dependent analysis of light extraction of GaN-based LEDs

Ching Cherng Sun, Tsung Xian Lee, Chao Ying Lin

Research output: Contribution to journalConference articlepeer-review


In this paper, based on the Monte-Carlo ray tracing simulation we present the study of the light extraction efficiency of GaN-based LEDs as a function of the position of the light source over the active layer with several parameters, including chip dimensions, absorption coefficients and package. Besides, the light extraction efficient characteristic of a ThinGaN LED is studied.

Original languageEnglish
Article number14
Pages (from-to)111-118
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventFourth International Conference on Solid State Lighting - Denver, CO, United States
Duration: 3 Aug 20046 Aug 2004


  • GaN-based LED
  • Light extraction efficiency
  • Monte-Carlo ray tracing method
  • ThinGaN


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