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: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsI.T. Ferguson, J.C. Carrano, T. Taguchi, I.E. Ashdown
Pages1-8
Number of pages8
Volume5941
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventFifth International Conference on Solid State Lighting - San Diego, CA, United States
Duration: 2005 Aug 12005 Aug 4

Other

OtherFifth International Conference on Solid State Lighting
CountryUnited States
CitySan Diego, CA
Period05/8/105/8/4

    Fingerprint

Keywords

  • Extraction efficiency
  • GaN
  • Light emitting diode
  • Patterning

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Cho, J., Lee, J. W., Im, J. S., Sone, C., Park, Y., Kim, D., ... Seong, T. Y. (2005). Recent development of patterned structure light-emitting diodes. In I. T. Ferguson, J. C. Carrano, T. Taguchi, & I. E. Ashdown (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5941, pp. 1-8). [594102] https://doi.org/10.1117/12.625922