ZnO nanowire gas sensor with UV-light for improved sensitivity

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dc.contributor.authorVan den Heever, T. S.
dc.contributor.authorHardie, G. L.
dc.contributor.authorPerold, W. J.
dc.date.accessioned2013-07-22T14:19:59Z
dc.date.available2013-07-22T14:19:59Z
dc.date.issued2013-04
dc.descriptionPublication of this article was funded by the Stellenbosch University Open Access Fund.en_ZA
dc.descriptionThe original publication is available at http://scidoc.org/ijnst.phpen_ZA
dc.description.abstractZnO nanowires are synthesised on a patterned substrate in order to see the response to different gases. Under ambient conditions the sensor shows very little response to any gas. A UV-light source is used to increase the sensitivity of the sensor by increasing the conductivity of the ZnO nanowires. The UV-light decreases the number of oxygen ions present on the surface of the ZnO nanowires which leads to better sensitivity. The sensor, with the aid of the laser, can distinguish between the different gases that were used, argon, oxygen, carbon dioxide and nitrogen. When a mixture of two gases was used the response fell in between the response of the individual gases. The obtained results are repeatable and consistent over different sensors.en_ZA
dc.description.sponsorshipStellenbosch Universityen_ZA
dc.description.versionPublishers' versionen_ZA
dc.identifier.citationVan den Heever, T. S., Hardie, G. L. & Perold, W. J. 2013. ZnO nanowire gas sensor with UV-light for improved sensitivity. International Journal of Nano Studies & Technology, 2:102.en_ZA
dc.identifier.issn2167-8685
dc.identifier.urihttp://hdl.handle.net/10019.1/85250
dc.language.isoen_ZAen_ZA
dc.publisherSciDoc Publishersen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectZnOen_ZA
dc.subjectNanowiresen_ZA
dc.subjectGas Sensoren_ZA
dc.subjectUV-lighten_ZA
dc.titleZnO nanowire gas sensor with UV-light for improved sensitivityen_ZA
dc.typeArticleen_ZA
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