Luminescent properties of ZnO nanowires and as-grown ensembles

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dc.contributor.author Ton-That, Cuong en_US
dc.contributor.author Foley, Matthew en_US
dc.contributor.author Phillips, Matt en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:48:47Z
dc.date.available 2010-05-28T09:48:47Z
dc.date.issued 2008 en_US
dc.identifier 2007003788 en_US
dc.identifier.citation Ton-That Cuong, Foley Matthew, and Phillips Matthew 2008, 'Luminescent properties of ZnO nanowires and as-grown ensembles', Institute of Physics (UK), vol. 19, pp. 1-5. en_US
dc.identifier.issn 0957-4484 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/9315
dc.description.abstract en_US
dc.description.abstract Vertically aligned ZnO nanowires were synthesized on a sapphire (11 (2) over bar0) substrate by vapour deposition and their light-emitting properties were characterized using photoluminescence and cathodoluminescence spectroscopies. Besides the nanowires, there exists a mosaic ZnO film on the substrate surface. Comparison of the luminescent properties of the as-grown ensemble and the nanowires extracted from it shows that the mosaic film is the major source of the defect-related green emission while the nanowires possess highly crystalline quality with virtually no defects. Photoemission spectroscopy shows that the valence band states associated with O 2p from the as-grown sample are diminished compared with those from the extracted nanowires. These findings suggest that the green emission partly arises from oxygen vacancies located on the surface of the mosaic film. en_US
dc.language en_US
dc.publisher Institute of Physics (UK) en_US
dc.relation.isbasedon en_US
dc.relation.isbasedon http://dx.doi.org/10.1088/0957-4484/19/41/415606 en_US
dc.title Luminescent properties of ZnO nanowires and as-grown ensembles en_US
dc.parent Nanotechnology en_US
dc.journal.volume 19 en_US
dc.journal.number en_US
dc.journal.number 41 en_US
dc.publocation Bristol, UK en_US
dc.identifier.startpage 1 en_US
dc.identifier.endpage 5 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 090400 en_US
dc.personcode 031010 en_US
dc.personcode 103829 en_US
dc.personcode 810070 en_US
dc.percentage 100 en_US
dc.classification.name Chemical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords en_US
dc.description.keywords ZINC-OXIDE; ELECTRONIC-STRUCTURE; GREEN LUMINESCENCE; NANORODS; PHOTOLUMINESCENCE; LASER; NANOSTRUCTURES; NANOPARTICLES; SPECTROSCOPY; TEMPERATURE en_US
dc.staffid 810070 en_US


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