Extraction efficiency improvement of GaN light-emitting diode using sub-wavelength nanoimprinted patterns on sapphire substrate

Hao Chen, Chao Wang, Stephen Y. Chou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The sapphire substrate with sub-wavelength pattern pitch (200 nm) was fabricated by nanoimprint and has significantly enhanced the extraction efficiency of GaN LED (450 nm) 80% more light out than the LEDs on flat sapphire substrate that grown in the same run and better than previously-reported micro-scale patterns.

Original languageEnglish (US)
Title of host publication2011 Conference on Lasers and Electro-Optics
Subtitle of host publicationLaser Science to Photonic Applications, CLEO 2011
PublisherIEEE Computer Society
ISBN (Print)9781557529107
DOIs
StatePublished - 2011

Publication series

Name2011 Conference on Lasers and Electro-Optics: Laser Science to Photonic Applications, CLEO 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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