Direct indium tin oxide nanoparticle printing technique for improvement of light extraction efficiency of GaN-based LEDs

Ki Yeon Yang, Sang Chul Oh, Joong Yeon Cho, Kyeong Jae Byeon, Heon Lee

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

To enhance the light extraction efficiency of the GaN-based light emitting diode (LED), indium tin oxide (ITO) nanoparticle photonic crystal patterns are fabricated on the surface of the GaN-based blue LED device using the direct printing technique of the ITO nanoparticles. According to electroluminescence (EL) measurements, the EL intensity of the GaN-based blue LED with photonic crystal patterns is 28% higher than an identical LED without photonic crystal patterns. Printing the ITO nanoparticles eliminates the need for a plasma etching process of the ITO layer so that the current-voltage characteristics do not degrade.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume157
Issue number11
DOIs
Publication statusPublished - 2010 Oct 13

Fingerprint

Tin oxides
printing
indium oxides
Indium
tin oxides
Light emitting diodes
Printing
light emitting diodes
Photonic crystals
Nanoparticles
nanoparticles
Electroluminescence
photonics
electroluminescence
crystals
Plasma etching
plasma etching
Current voltage characteristics
indium tin oxide
electric potential

ASJC Scopus subject areas

  • Electrochemistry
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics

Cite this

Direct indium tin oxide nanoparticle printing technique for improvement of light extraction efficiency of GaN-based LEDs. / Yang, Ki Yeon; Oh, Sang Chul; Cho, Joong Yeon; Byeon, Kyeong Jae; Lee, Heon.

In: Journal of the Electrochemical Society, Vol. 157, No. 11, 13.10.2010.

Research output: Contribution to journalArticle

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