Optical and electrical switching in nanostructured coatings of VO2

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dc.contributor.author Gentle, Angus en_US
dc.contributor.author Maaroof, Abbas en_US
dc.contributor.author Cortie, Michael en_US
dc.contributor.author Smith, Geoff en_US
dc.contributor.editor Smith, GB; Cortie MB en_US
dc.date.accessioned 2009-06-26T04:16:22Z
dc.date.available 2009-06-26T04:16:22Z
dc.date.issued 2007 en_US
dc.identifier 2007001259 en_US
dc.identifier.citation Gentle Angus et al. 2007, 'Optical and electrical switching in nanostructured coatings of VO2', SPIE, Washington, USA, pp. 1-8. en_US
dc.identifier.issn 0277-786X en_US
dc.identifier.other E1 en_US
dc.identifier.uri http://hdl.handle.net/10453/788
dc.description.abstract Vanadium dioxide udergoes a reversible metal-insulator phase transition at about 68 degrees C. Cooatings iof this compound are reflective in the infrared above this temperature, and transmissive or absorptive below it, while resistivity changes by several orders of magnitude. We present a convenient methods for deposting films with nano-sized grains, which are then optically and electrically characterised. Emphasis in this study is the impact of aluminium doping and grain sturcture. The optical hysteresis is rpesnted and its switching range is not altered at different soping levels but he value of transition temperature Tc does shift. In contrast hysteresis in dc resistance does change with a strong correlation between the fall in resistance in the semiconductor state with doping, in the drop in Tc and the electrica properties in the metal state. For grain sizes under about 180 nm the conductivity in the mtal phase is not linear in temperature but is thermally activated, with activation enegies delta E dependent on both grain size G and doping level. en_US
dc.publisher SPIE en_US
dc.relation.isbasedon http://dx.doi.org/10.1117/12.733200 en_US
dc.title Optical and electrical switching in nanostructured coatings of VO2 en_US
dc.parent Nanocoatings. Proceedings of SPIE vol 6647 en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation Washington, USA en_US
dc.identifier.startpage 1 en_US
dc.identifier.endpage 8 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.conference.location San Diego California USA en_US
dc.for 100700 en_US
dc.personcode 000307 en_US
dc.personcode 010727 en_US
dc.personcode 020302 en_US
dc.personcode 730312 en_US
dc.percentage 100 en_US
dc.classification.name Optical Physics en_US
dc.classification.type FOR-08 en_US
dc.custom SPIE en_US
dc.date.activity 20070826 en_US
dc.location.activity San Diego, California, USA en_US
dc.description.keywords vanadium dioxide, metal insulator transitionm, thin film, thermochromic, coherent fluctuations en_US
dc.staffid 730312 en_US


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