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Article: Observation of enhanced visible and infrared emissions in photonic crystal thin-film light-emitting diodes

TitleObservation of enhanced visible and infrared emissions in photonic crystal thin-film light-emitting diodes
Authors
Issue Date2014
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters , 2014, v. 105 n. 7, article no. 071104, p. 071104:1-4 How to Cite?
AbstractPhotonic crystals, in the form of closed-packed nano-pillar arrays patterned by nanosphere lithography, have been formed on the n-faces of InGaN thin-film vertical light-emitting diodes (LEDs). Through laser lift-off of the sapphire substrate, the thin-film LEDs conduct vertically with reduced dynamic resistances, as well as reduced thermal resistances. The photonic crystal plays a role in enhancing light extraction, not only at visible wavelengths but also at infrared wavelengths boosting heat radiation at high currents, so that heat-induced effects on internal quantum efficiencies are minimized. The observations are consistent with predictions from finite-difference time-domain simulations. © 2014 AIP Publishing LLC.
Persistent Identifierhttp://hdl.handle.net/10722/202850
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105

 

DC FieldValueLanguage
dc.contributor.authorCheung, YFen_US
dc.contributor.authorLi, KHen_US
dc.contributor.authorHui, RSYen_US
dc.contributor.authorChoi, HWen_US
dc.date.accessioned2014-09-19T10:08:25Z-
dc.date.available2014-09-19T10:08:25Z-
dc.date.issued2014en_US
dc.identifier.citationApplied Physics Letters , 2014, v. 105 n. 7, article no. 071104, p. 071104:1-4en_US
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10722/202850-
dc.description.abstractPhotonic crystals, in the form of closed-packed nano-pillar arrays patterned by nanosphere lithography, have been formed on the n-faces of InGaN thin-film vertical light-emitting diodes (LEDs). Through laser lift-off of the sapphire substrate, the thin-film LEDs conduct vertically with reduced dynamic resistances, as well as reduced thermal resistances. The photonic crystal plays a role in enhancing light extraction, not only at visible wavelengths but also at infrared wavelengths boosting heat radiation at high currents, so that heat-induced effects on internal quantum efficiencies are minimized. The observations are consistent with predictions from finite-difference time-domain simulations. © 2014 AIP Publishing LLC.-
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/-
dc.relation.ispartofApplied Physics Lettersen_US
dc.rightsApplied Physics Letters . Copyright © American Institute of Physics.-
dc.rightsCopyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters , 2014, v. 105 n. 7, article no. 071104 and may be found at http://scitation.aip.org/content/aip/journal/apl/105/7/10.1063/1.4893739-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleObservation of enhanced visible and infrared emissions in photonic crystal thin-film light-emitting diodesen_US
dc.typeArticleen_US
dc.identifier.emailCheung, YF: yukfaira@hku.hken_US
dc.identifier.emailLi, KH: khei@eee.hku.hken_US
dc.identifier.emailHui, RSY: ronhui@eee.hku.hken_US
dc.identifier.emailChoi, HW: hwchoi@eee.hku.hken_US
dc.identifier.authorityHui, RSY=rp01510en_US
dc.identifier.authorityChoi, HW=rp00108en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1063/1.4893739-
dc.identifier.scopuseid_2-s2.0-84929416128-
dc.identifier.hkuros236772en_US
dc.identifier.volume105en_US
dc.identifier.issue7-
dc.identifier.spage071104:1en_US
dc.identifier.epage071104:4en_US
dc.publisher.placeUnited States-

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