Core-shell ZnO nanorod lasers

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dc.contributor.authorVisimberga, Giuseppe
dc.contributor.authorFaulkner, Colm C.
dc.contributor.authorBoese, Markus
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderSixth Framework Programmeen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderHigher Education Authorityen
dc.date.accessioned2018-07-17T10:45:28Z
dc.date.available2018-07-17T10:45:28Z
dc.date.issued2012-01
dc.date.updated2018-06-11T21:40:54Z
dc.description.abstractRoom-temperature ultraviolet lasing in [0001] oriented zinc oxide nanorods grown on silicon and fused silica substrates by a simple vapor transport and condensation process. These wide band-gap semiconductor nanorods form natural laser cavities with diameters varying from 150 to 350 nm and lengths up to 10 µm. Under optical excitation, surface-emitting lasing action was observed at 385 nm. The dielectric core-shell Al2O3@ZnO nanorods exhibit enhanced axial Fabry-Pérot resonating characteristics with (0001) crystal faces as mirror facets improved by a metallic reflector at one end. This metallic coating and dielectric oxide shell greatly increase near-band edge emission while reducing excitation power thresholds due to lower losses and increased optical density from improved refractive index mediated waveguiding during optical pumping.en
dc.description.sponsorshipSixth Framework Programme (EU Framework 6 Network of Excellence, "Nanophotonics to realise molecular-scale technologies", PhOREMOST, Project ID: 511616); Higher Education Authority (under the framework of the INSPIRE programme, funded by the Irish Government's Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007-2013)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationVisimberga, G., Faulkner, C. C., Boese, M. and O'Dwyer, C. (2012) 'Core-Shell ZnO Nanorod Lasers', ECS Transactions, 45(7), pp. 51-59. doi: 10.1149/1.3701525en
dc.identifier.doi10.1149/1.3701525
dc.identifier.endpage59en
dc.identifier.issn1938-5862
dc.identifier.journaltitleElectrochemical Society Transactionsen
dc.identifier.startpage51en
dc.identifier.urihttps://hdl.handle.net/10468/6465
dc.identifier.volume45en
dc.language.isoenen
dc.publisherElectrochemical Societyen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Short Term Travel Fellowship (STTF)/07/SK/B1232a - STTF 11/IE/Optical Probing of Phase Changes in Inverse opal Photonic Crystal Li-on Battery Electrodes/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Stokes Professorship & Lectureship Programme/07/SK/B1232a/IE/Colm ODwyer/en
dc.relation.urihttp://ecst.ecsdl.org/content/45/7/51.abstract
dc.rights© 2012 ECS - The Electrochemical Societyen
dc.subjectNanorodsen
dc.subjectElectric excitationen
dc.subjectEnergy gapen
dc.subjectLasersen
dc.subjectOptical pumpingen
dc.subjectPhotoexcitationen
dc.subjectRefractive indexen
dc.subjectSemiconductor materialsen
dc.subjectVaporsen
dc.subjectZinc oxideen
dc.subjectCondensation processen
dc.subjectCore-shellen
dc.subjectCrystal faceen
dc.subjectDielectric oxidesen
dc.subjectExcitation poweren
dc.subjectFused silica substratesen
dc.subjectLasing actionen
dc.subjectMetallic coatingen
dc.subjectMetallic reflectorsen
dc.subjectMirror facetsen
dc.subjectNear band edge emissionsen
dc.subjectRoom-temperature ultraviolet lasingen
dc.subjectVapor transporten
dc.subjectWide-band-gap semiconductoren
dc.subjectZinc oxide nanorodsen
dc.subjectZnO nanoroden
dc.titleCore-shell ZnO nanorod lasersen
dc.typeArticle (peer-reviewed)en
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