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Conference Paper: Design and performance of LEDs with circular geometry

TitleDesign and performance of LEDs with circular geometry
Authors
Wang, XHLai, PTChoi, HW
KeywordsDesign
Ingan
Laser application
Leds
Performance
Issue Date2010
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/122311674/grouphome/home.html
Citation
The 8th International Conference on Nitride Semiconductor (ICNS-8), Jeju Island, Korea, 18-23 October 2009. In Physica Status Solidi. C, 2010, v. 7 n. 7-8, p. 2144-2147 How to Cite?
DOI: http://dx.doi.org/10.1002/pssc.200983461
AbstractInGaN light-emitting diodes (LEDs) on sapphire substrate in the shape of cuboid and circular disk are diced via ultraviolet nanosecond laser micromachining. The geometrical influence on light extraction and emission pattern are evaluated. Our postulation on the optical characteristics of circular LEDs is qualitatively confirmed according to ray-tracing simulation. The enhancement in light extraction over conventional cuboid chips is more than 10% according to measurements of our fabricated devices. The fair consistency between the simulation result and measurements indicates that the circular design is indeed effective for improving light extraction from InGaN LEDs.
DescriptionPhysica status solidi (c), v.7 n. 7-8 entitled: Special Issue: 8th International Conference on Nitride Semiconductors (ICNS-8)
Persistent Identifierhttp://hdl.handle.net/10722/124705
ISSN
1862-6351
2020 SCImago Journal Rankings: 0.210
ISI Accession Number ID
WOS:000301587600122
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorWang, XH-
dc.contributor.authorLai, PT-
dc.contributor.authorChoi, HW-
dc.date.accessioned2010-10-31T10:49:30Z-
dc.date.available2010-10-31T10:49:30Z-
dc.date.issued2010-
dc.identifier.citationThe 8th International Conference on Nitride Semiconductor (ICNS-8), Jeju Island, Korea, 18-23 October 2009. In Physica Status Solidi. C, 2010, v. 7 n. 7-8, p. 2144-2147-
dc.identifier.issn1862-6351-
dc.identifier.urihttp://hdl.handle.net/10722/124705-
dc.descriptionPhysica status solidi (c), v.7 n. 7-8 entitled: Special Issue: 8th International Conference on Nitride Semiconductors (ICNS-8)-
dc.description.abstractInGaN light-emitting diodes (LEDs) on sapphire substrate in the shape of cuboid and circular disk are diced via ultraviolet nanosecond laser micromachining. The geometrical influence on light extraction and emission pattern are evaluated. Our postulation on the optical characteristics of circular LEDs is qualitatively confirmed according to ray-tracing simulation. The enhancement in light extraction over conventional cuboid chips is more than 10% according to measurements of our fabricated devices. The fair consistency between the simulation result and measurements indicates that the circular design is indeed effective for improving light extraction from InGaN LEDs.-
dc.languageeng-
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/122311674/grouphome/home.html-
dc.relation.ispartofPhysica Status Solidi. C: Current Topics in Solid State Physics-
dc.rightspostprint: This is the accepted version of the following article: FULL CITE, which has been published in final form at [Link to final article]. Preprint This is the pre-peer reviewed version of the following article: FULL CITE, which has been published in final form at [Link to final article].-
dc.subjectDesign-
dc.subjectIngan-
dc.subjectLaser application-
dc.subjectLeds-
dc.subjectPerformance-
dc.titleDesign and performance of LEDs with circular geometry-
dc.typeConference_Paper-
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1862-6351&volume=7&issue=7-8&spage=2144&epage=2147&date=2010&atitle=Design+and+performance+of+LEDs+with+circular+geometry-
dc.identifier.emailWang, XH: xhwang@eee.hku.hk-
dc.identifier.emailLai, PT: laip@eee.hku.hk-
dc.identifier.emailChoi, HW: hwchoi@eee.hku.hk-
dc.identifier.authorityLai, PT=rp00130-
dc.identifier.authorityChoi, HW=rp00108-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/pssc.200983461-
dc.identifier.scopuseid_2-s2.0-77955787570en_HK
dc.identifier.hkuros175221-
dc.identifier.hkuros175251-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955787570&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume7-
dc.identifier.issue7-8-
dc.identifier.spage2144-
dc.identifier.epage2147-
dc.identifier.isiWOS:000301587600122-
dc.publisher.placeGermany-
dc.identifier.scopusauthoridWang, XH=34168501000en_HK
dc.identifier.scopusauthoridLai, PT=7202946460en_HK
dc.identifier.scopusauthoridChoi, HW=7404334877en_HK
dc.customcontrol.immutablesml 160105 - merged-
dc.identifier.issnl1610-1634-

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