GaN-based light-emitting diodes by laser lift-off with micro- and nano-sized reflectors
DC Field | Value | Language |
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dc.contributor.author | Jung, Younghun | - |
dc.contributor.author | Kim, Sung Hyun | - |
dc.contributor.author | Kim, Jihyun | - |
dc.contributor.author | Wang, Xiaotie | - |
dc.contributor.author | Ren, Fan | - |
dc.contributor.author | Choi, Kyoung Jin | - |
dc.contributor.author | Pearton, Stephen J. | - |
dc.date.accessioned | 2021-09-06T16:03:57Z | - |
dc.date.available | 2021-09-06T16:03:57Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-09 | - |
dc.identifier.issn | 0734-2101 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107570 | - |
dc.description.abstract | GaN-based light-emitting diodes (LEDs) were grown on a patterned sapphire substrate (PSS) containing hemispheres on the growth surface. Free-standing LED structures were obtained by removing the PSS using laser lift-off technique. The N-face GaN surface with micron-sized concave hemisphere structures, which had been located between the sapphire and the GaN film, was then exposed and photo-electrochemically etched using a 2M KOH solution to create nano-sized pyramids. Aluminum was deposited on the roughened N-face GaN as a reflective layer. The roughened aluminum reflectors, consisting of micron-sized hemisphere structures and nano-sized pyramids, enhanced the light extraction efficiency through multiple scattering events of photons and randomized the directions of the photons. The subsequent enhancement in electroluminescence was 13% compared with an untextured control LED. (C) 2012 American Vacuum Society. [http://dx.doi.org/10.1116/1.4739769] | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | A V S AMER INST PHYSICS | - |
dc.subject | EXTRACTION EFFICIENCY | - |
dc.subject | QUANTUM EFFICIENCY | - |
dc.subject | GALLIUM NITRIDE | - |
dc.subject | SURFACE | - |
dc.subject | LAYER | - |
dc.subject | POLAR | - |
dc.title | GaN-based light-emitting diodes by laser lift-off with micro- and nano-sized reflectors | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sung Hyun | - |
dc.contributor.affiliatedAuthor | Kim, Jihyun | - |
dc.identifier.doi | 10.1116/1.4739769 | - |
dc.identifier.scopusid | 2-s2.0-84865480866 | - |
dc.identifier.wosid | 000308404900005 | - |
dc.identifier.bibliographicCitation | JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, v.30, no.5 | - |
dc.relation.isPartOf | JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | - |
dc.citation.title | JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | - |
dc.citation.volume | 30 | - |
dc.citation.number | 5 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | EXTRACTION EFFICIENCY | - |
dc.subject.keywordPlus | QUANTUM EFFICIENCY | - |
dc.subject.keywordPlus | GALLIUM NITRIDE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | POLAR | - |
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