Forming the graded-refractive-index antireflection layers on light-emitting diodes to enhance the light extraction
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Joong-Yeon | - |
dc.contributor.author | Byeon, Kyeong-Jae | - |
dc.contributor.author | Lee, Heon | - |
dc.date.accessioned | 2021-09-07T09:21:38Z | - |
dc.date.available | 2021-09-07T09:21:38Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2011-08-15 | - |
dc.identifier.issn | 0146-9592 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/111790 | - |
dc.description.abstract | Distributed antireflection (AR) layers with different composition ratios of ITO and SiO2 formed on an ITO electrode of GaN-based LEDs provide substantial enhancement in light-extraction efficiency. By using the coradio frequency magnetron sputtering deposition, four 50nm thick AR layers with graduated refractive indices were fabricated. The effect of the AR layers on enhancing the efficiency of the LED device was analyzed by electroluminescence (EL) and I-V measurements. As a result, the EL intensity of the LED device grown on the patterned sapphire substrate with AR layers was increased by up to 13% compared to the conventional patterned sapphire substrate-applied LED device without AR layers at a drive current of 20mA. The AR layers on top of the LED device gradually changed the refractive indices between ITO (n = 2.1) and air (n = 1.0), which minimized the total internal reflection of generated light. And no degradation in the electrical characteristic of the LEDs was observed according to the I-V measurements. (C) 2011 Optical Society of America | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | OPTICAL SOC AMER | - |
dc.title | Forming the graded-refractive-index antireflection layers on light-emitting diodes to enhance the light extraction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Heon | - |
dc.identifier.doi | 10.1364/OL.36.003203 | - |
dc.identifier.scopusid | 2-s2.0-80051742974 | - |
dc.identifier.wosid | 000293890800064 | - |
dc.identifier.bibliographicCitation | OPTICS LETTERS, v.36, no.16, pp.3203 - 3205 | - |
dc.relation.isPartOf | OPTICS LETTERS | - |
dc.citation.title | OPTICS LETTERS | - |
dc.citation.volume | 36 | - |
dc.citation.number | 16 | - |
dc.citation.startPage | 3203 | - |
dc.citation.endPage | 3205 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.