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An order of magnitude increase in the quantum efficiency of (Al)GaAs nanowires using hybrid photonic–plasmonic modes

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dc.contributor.authorMokkapati, Sudha
dc.contributor.authorSaxena, Dhruv
dc.contributor.authorJiang, Nian
dc.contributor.authorLi, Li
dc.contributor.authorTan, Hark Hoe
dc.contributor.authorJagadish, Chennupati
dc.date.accessioned2015-06-02T03:26:56Z
dc.date.available2015-06-02T03:26:56Z
dc.date.issued2015-01-14
dc.date.updated2015-12-10T08:30:01Z
dc.description.abstractWe demonstrate 900% relative enhancement in the quantum efficiency (QE) of surface passivated GaAs nanowires by coupling them to resonant nanocavities that support hybrid photonic-plasmonic modes. This nonconventional approach to increase the QE of GaAs nanowires results in QE enhancement over the entire nanowire volume and is not limited to the near-field of the plasmonic structure. Our cavity design enables spatially and spectrally tunable resonant modes and efficient in- and out-coupling of light from the nanowires. Furthermore, this approach is not fabrication intensive; it is scalable and can be adapted to enhance the QE of a wide range of low QE semiconductor nanostructures.
dc.description.sponsorshipThe authors acknowledge the Australian Research Council (ARC) for financial support, the Australian National Fabrication Facility (ANFF) for access to facilities, and the National Computational Infrastructure (NCI) for providing access to computational resources.en_AU
dc.format6 pages
dc.identifier.issn1530-6984en_AU
dc.identifier.urihttp://hdl.handle.net/1885/13702
dc.publisherAmerican Chemical Society
dc.rights© 2014 American Chemical Society
dc.sourceNano Letters
dc.subjectgaas
dc.subjectpurcell factor
dc.subjectnanowire
dc.subjectquantum efficiency
dc.subjectradiative redombination rate
dc.subjectsurface passivation
dc.titleAn order of magnitude increase in the quantum efficiency of (Al)GaAs nanowires using hybrid photonic–plasmonic modes
dc.typeJournal article
local.bibliographicCitation.issue1en_AU
local.bibliographicCitation.lastpage312en_AU
local.bibliographicCitation.startpage307en_AU
local.contributor.affiliationMokkapati, Sudha, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationSaxena, Dhruv, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationJiang, Nian, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationLi, Li, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationTan, Hark Hoe, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.affiliationJagadish, Chennupati, Department of Electronic Materials Engineering, CPMS Research School of Physics and Engineering, The Australian National Universityen_AU
local.contributor.authoruidu2576041en_AU
local.identifier.absfor100711 - Nanophotonics
local.identifier.absfor100706 - Nanofabrication, Growth and Self Assembly
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
local.identifier.ariespublicationU3594520xPUB636
local.identifier.citationvolume15en_AU
local.identifier.doi10.1021/nl503593wen_AU
local.identifier.essn1530-6992en_AU
local.identifier.scopusID2-s2.0-84920935778
local.publisher.urlhttp://pubs.acs.org/en_AU
local.type.statusPublished Versionen_AU

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