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Conference Paper: Micro-pixel light emitting diodes with wavelength-tunable output

TitleMicro-pixel light emitting diodes with wavelength-tunable output
Authors
Issue Date2008
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/102519628
Citation
The 7th International Conference of Nitride Semiconductors (ICNS-7), Las Vegas, NV, 16-21 September 2007. In Physica Status Solidi (C) Current Topics In Solid State Physics, 2008, v. 5 n. 6, p. 2198-2200 How to Cite?
AbstractA novel design and implementation of a single-chip wavelength tunable light emitting diode (LED) is introduced in this paper, with varying emission spectral characteristics ranging between 470 nm (blue) and 525 nm (green). The emission wavelength of green fluorescent microspheres (525 nm), acting as a colour conversion agent, is chosen to be efficiently excited by a GaN LED of 470 nm. It is selectively-coated onto designated micrometer-scaled pixels, which are interconnected via metal lines. As a result, the LED allows separate control of optical output either 470 nm, 525 nm or even a mixture of both wavelengths. Since the pixels are of micronscale which are non-resolvable by the unaided human eye, the output appears optically mixed. This type of device, combining the application of micro-light-emitting diode and fluorescent microsphere technologies, offers a colour tunable output suitable for a wide range of applications including such as outdoor panel displays. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/73537
ISSN
2015 SCImago Journal Rankings: 0.392
References

 

DC FieldValueLanguage
dc.contributor.authorNg, WNen_HK
dc.contributor.authorLeung, CHen_HK
dc.contributor.authorLai, PTen_HK
dc.contributor.authorChoi, HWen_HK
dc.date.accessioned2010-09-06T06:52:18Z-
dc.date.available2010-09-06T06:52:18Z-
dc.date.issued2008en_HK
dc.identifier.citationThe 7th International Conference of Nitride Semiconductors (ICNS-7), Las Vegas, NV, 16-21 September 2007. In Physica Status Solidi (C) Current Topics In Solid State Physics, 2008, v. 5 n. 6, p. 2198-2200en_HK
dc.identifier.issn1862-6351en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73537-
dc.description.abstractA novel design and implementation of a single-chip wavelength tunable light emitting diode (LED) is introduced in this paper, with varying emission spectral characteristics ranging between 470 nm (blue) and 525 nm (green). The emission wavelength of green fluorescent microspheres (525 nm), acting as a colour conversion agent, is chosen to be efficiently excited by a GaN LED of 470 nm. It is selectively-coated onto designated micrometer-scaled pixels, which are interconnected via metal lines. As a result, the LED allows separate control of optical output either 470 nm, 525 nm or even a mixture of both wavelengths. Since the pixels are of micronscale which are non-resolvable by the unaided human eye, the output appears optically mixed. This type of device, combining the application of micro-light-emitting diode and fluorescent microsphere technologies, offers a colour tunable output suitable for a wide range of applications including such as outdoor panel displays. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.en_HK
dc.languageengen_HK
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/102519628en_HK
dc.relation.ispartofPhysica Status Solidi (C) Current Topics in Solid State Physicsen_HK
dc.titleMicro-pixel light emitting diodes with wavelength-tunable outputen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1610-1634&volume=5&spage=2198&epage=&date=2008&atitle=Micro-pixel+Light+Emitting+Diodes+with+Wavelength-tunable+Outputen_HK
dc.identifier.emailLeung, CH:chleung@eee.hku.hken_HK
dc.identifier.emailLai, PT:laip@eee.hku.hken_HK
dc.identifier.emailChoi, HW:hwchoi@eee.hku.hken_HK
dc.identifier.authorityLeung, CH=rp00146en_HK
dc.identifier.authorityLai, PT=rp00130en_HK
dc.identifier.authorityChoi, HW=rp00108en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/pssc.200778539en_HK
dc.identifier.scopuseid_2-s2.0-73949109011en_HK
dc.identifier.hkuros146758en_HK
dc.identifier.hkuros150359-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-73949109011&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5en_HK
dc.identifier.issue6en_HK
dc.identifier.spage2198en_HK
dc.identifier.epage2200en_HK
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridNg, WN=23486567300en_HK
dc.identifier.scopusauthoridLeung, CH=7402612415en_HK
dc.identifier.scopusauthoridLai, PT=7202946460en_HK
dc.identifier.scopusauthoridChoi, HW=7404334877en_HK

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