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Direct Indium Tin Oxide Nanoparticle Printing Technique for Improvement of Light Extraction Efficiency of GaN-Based LEDs

Authors
Yang, Ki-YeonOh, Sang-ChulCho, Joong-YeonByeon, Kyeong-JaeLee, Heon
Issue Date
2010
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.157, no.11, pp.H1067 - H1070
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume
157
Number
11
Start Page
H1067
End Page
H1070
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/118590
DOI
10.1149/1.3489293
ISSN
0013-4651
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. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3489293] All rights reserved.
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