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Temperature dependence of photoluminescence from single core-shell GaAs–AlGaAs nanowires

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dc.contributor.authorTitova, L. V.en_AU
dc.contributor.authorHoang, Thang B.en_AU
dc.contributor.authorJackson, H. E.en_AU
dc.contributor.authorSmith, L. M.en_AU
dc.contributor.authorYarrison-Rice, J. M.en_AU
dc.contributor.authorKim, Y.en_AU
dc.contributor.authorJoyce, H. J.en_AU
dc.contributor.authorJagadish, C.en_AU
dc.contributor.authorTan, Hark Hoeen_AU
dc.date.accessioned2015-11-03T00:23:25Z
dc.date.available2015-11-03T00:23:25Z
dc.date.issued2006-10-26
dc.date.updated2015-12-08T03:09:48Z
dc.description.abstractTemperature-dependent polarized microphotoluminescencemeasurements of single GaAs∕AlGaAs core-shell nanowires are used to probe their electronic states. The low-temperature emission from these wires is strongly enhanced compared with that observed in bare GaAsnanowires and is strongly polarized, reflecting the dielectric mismatch between the nanowire and the surrounding air. The temperature-dependentband gap of the nanowires is seen to be somewhat different from that observed in bulk GaAs, and the PL rapidly quenches above 120K, with an activation energy of 17meV reflecting the presence of nonradiative defects.
dc.description.sponsorshipThis work was supported by the University of Cincinnati. Australian authors gratefully acknowledge the financial support from the Australian Research Council.en_AU
dc.identifier.issn0003-6951en_AU
dc.identifier.urihttp://hdl.handle.net/1885/16215
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 3/11/15). Copyright 2006 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 and may be found at https://doi.org/10.1063/1.2364885
dc.sourceApplied Physics Letters
dc.subjectKeywords: Activation energy; Dielectric properties; Nanostructured materials; Semiconducting aluminum compounds; Semiconducting gallium arsenide; Band gap; Dielectric mismatch; Low-temperature emission; Photoluminescence
dc.titleTemperature dependence of photoluminescence from single core-shell GaAs–AlGaAs nanowires
dc.typeJournal article
local.bibliographicCitation.issue17en_AU
local.bibliographicCitation.startpage173126en_AU
local.contributor.affiliationTitova, Lyubov V , University of Cincinnati, United States of Americaen_AU
local.contributor.affiliationHoang, Thang B , University of Cincinnati, United States of Americaen_AU
local.contributor.affiliationJackson, Howard E , University of Cincinnati, United States of Americaen_AU
local.contributor.affiliationSmith, Leigh M , University of Cincinnati, United States of Americaen_AU
local.contributor.affiliationYarrison-Rice, Jan M , University of Miami, United States of Americaen_AU
local.contributor.affiliationKim, Yong, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationJoyce, Hannah J, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationTan, Hoe Hark, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.affiliationJagadish, Chennupati, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National Universityen_AU
local.contributor.authoruidu9302338en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor100799en_AU
local.identifier.absfor020501en_AU
local.identifier.ariespublicationu4047546xPUB17en_AU
local.identifier.citationvolume89en_AU
local.identifier.doi10.1063/1.2364885en_AU
local.identifier.scopusID2-s2.0-33750436198
local.publisher.urlhttps://www.aip.org/en_AU
local.type.statusPublished Versionen_AU

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