Recent development of patterned structure light-emitting diodes

Jaehee Cho, Jeong Wook Lee, Jin Seo Im, Cheolsoo Sone, Yongjo Park, Dongho Kim, Heonsu Jeon, Euijoon Yoon, Dong Seok Leem, Tae Yeon Seong

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


The efficiency of a conventional light emitting diode (LED) is limited by coupling of light into guided modes in the structure. Several methods to increase the extraction efficiency of nitride-based LEDs are studied from the perspective of the patterned structures in LEDs. The patterned structures are made in the interface between a semiconductor and a sapphire substrate and on the surface of a semiconductor or an indium tin oxide electrode. All of these approaches show an increased light output compared to that of reference samples, which means these kinds of scattering sources are inevitable to make a highly efficient light emitter in nitride-based semiconductor system.

Original languageEnglish
Article number594102
Pages (from-to)1-8
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2005
Externally publishedYes
EventFifth International Conference on Solid State Lighting - San Diego, CA, United States
Duration: 2005 Aug 12005 Aug 4


  • Extraction efficiency
  • GaN
  • Light emitting diode
  • Patterning

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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