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Article: Photonic crystal light-emitting diodes fabricated by microsphere lithography

TitlePhotonic crystal light-emitting diodes fabricated by microsphere lithography
Authors
Issue Date2008
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano
Citation
Nanotechnology, 2008, v. 19 n. 25 How to Cite?
AbstractInstead of using conventional electron lithography, a two-dimensional photonic crystal consisting of a hexagonal array of triangular air-holes was created on the surface of a GaN LED substrate using microsphere lithography. The microspheres self-assemble into a single-layered hexagonal-close-packed array acting as an etch mask. A significant enhancement in photoluminescence intensity was recorded from the PhC LED structure. A twofold increase in electroluminescence was observed from the PhC LED compared to an as-grown LED with identical geometry. Besides geometrical factors due to surface roughening, the dispersive nature of PhCs and diffractive properties of the PhC as a grating contribute to the enhancement of light extraction from the LED. © IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/74003
ISSN
2015 Impact Factor: 3.573
2015 SCImago Journal Rankings: 1.196
ISI Accession Number ID
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.accessioned2010-09-06T06:56:52Z-
dc.date.available2010-09-06T06:56:52Z-
dc.date.issued2008en_HK
dc.identifier.citationNanotechnology, 2008, v. 19 n. 25en_HK
dc.identifier.issn0957-4484en_HK
dc.identifier.urihttp://hdl.handle.net/10722/74003-
dc.description.abstractInstead of using conventional electron lithography, a two-dimensional photonic crystal consisting of a hexagonal array of triangular air-holes was created on the surface of a GaN LED substrate using microsphere lithography. The microspheres self-assemble into a single-layered hexagonal-close-packed array acting as an etch mask. A significant enhancement in photoluminescence intensity was recorded from the PhC LED structure. A twofold increase in electroluminescence was observed from the PhC LED compared to an as-grown LED with identical geometry. Besides geometrical factors due to surface roughening, the dispersive nature of PhCs and diffractive properties of the PhC as a grating contribute to the enhancement of light extraction from the LED. © IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nanoen_HK
dc.relation.ispartofNanotechnologyen_HK
dc.titlePhotonic crystal light-emitting diodes fabricated by microsphere lithographyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0957-4484&volume=19&spage=255302&epage=&date=2008&atitle=Photonic+Crystal+Light-emitting+Diodes+Fabricated+by+Microsphere+Lithographyen_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.doi10.1088/0957-4484/19/25/255302en_HK
dc.identifier.scopuseid_2-s2.0-44949098160en_HK
dc.identifier.hkuros146762en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-44949098160&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue25en_HK
dc.identifier.isiWOS:000256455800007-
dc.publisher.placeUnited Kingdomen_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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