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Article: Spectral conversion with fluorescent microspheres for light emitting diodes

TitleSpectral conversion with fluorescent microspheres for light emitting diodes
Authors
Issue Date2008
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.org
Citation
Optics Express, 2008, v. 16 n. 1, p. 13-18 How to Cite?
AbstractAn innovative spectral conversion scheme for light emitting diodes using fluorescent microspheres has been demonstrated. An optimally mixed proportion of green and red fluorescent microspheres were coated onto a high-extraction- efficiency GaN micro-LED with emission centred at 470 nm. The microspheres self-assemble into ordered hexagonally arrays, forming regular and uniform coating layers. Devices with cool and warm white emission were achieved. The bluish-white LED has a luminous efficacy of 27.3 Im/W (at 20 mA) with CIE coordinates of (0.26, 0.28) and 8500K CCT, while the yellowish-white LED has a luminous efficacy of 26.67 Im/W (at 20 mA) with CIE coordinates of (0.36, 0.43) and 13000K CCT. © 2007 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/73585
ISSN
2015 Impact Factor: 3.148
2015 SCImago Journal Rankings: 2.186
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHui, KNen_HK
dc.contributor.authorLai, PTen_HK
dc.contributor.authorChoi, HWen_HK
dc.date.accessioned2010-09-06T06:52:47Z-
dc.date.available2010-09-06T06:52:47Z-
dc.date.issued2008en_HK
dc.identifier.citationOptics Express, 2008, v. 16 n. 1, p. 13-18en_HK
dc.identifier.issn1094-4087en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73585-
dc.description.abstractAn innovative spectral conversion scheme for light emitting diodes using fluorescent microspheres has been demonstrated. An optimally mixed proportion of green and red fluorescent microspheres were coated onto a high-extraction- efficiency GaN micro-LED with emission centred at 470 nm. The microspheres self-assemble into ordered hexagonally arrays, forming regular and uniform coating layers. Devices with cool and warm white emission were achieved. The bluish-white LED has a luminous efficacy of 27.3 Im/W (at 20 mA) with CIE coordinates of (0.26, 0.28) and 8500K CCT, while the yellowish-white LED has a luminous efficacy of 26.67 Im/W (at 20 mA) with CIE coordinates of (0.36, 0.43) and 13000K CCT. © 2007 Optical Society of America.en_HK
dc.languageengen_HK
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.orgen_HK
dc.relation.ispartofOptics Expressen_HK
dc.rightsOptics Express. Copyright © Optical Society of America.en_HK
dc.titleSpectral conversion with fluorescent microspheres for light emitting diodesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1094-4087&volume=16&spage=13&epage=&date=2008&atitle=Spectral+Conversion+with+fluorescent+microspheres+for+light+emitting+diodesen_HK
dc.identifier.emailLai, PT:laip@eee.hku.hken_HK
dc.identifier.emailChoi, HW:hwchoi@eee.hku.hken_HK
dc.identifier.authorityLai, PT=rp00130en_HK
dc.identifier.authorityChoi, HW=rp00108en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1364/OE.16.000013en_HK
dc.identifier.scopuseid_2-s2.0-38049152504en_HK
dc.identifier.hkuros146761en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38049152504&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume16en_HK
dc.identifier.issue1en_HK
dc.identifier.spage13en_HK
dc.identifier.epage18en_HK
dc.identifier.isiWOS:000252234800003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHui, KN=12139840100en_HK
dc.identifier.scopusauthoridLai, PT=7202946460en_HK
dc.identifier.scopusauthoridChoi, HW=7404334877en_HK

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