Please use this identifier to cite or link to this item: http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3963
Full metadata record
DC FieldValueLanguage
dc.contributor.authorTharsika, T.
dc.contributor.authorThanihaichelvan, M.
dc.contributor.authorHaseeb, A.S.M.A
dc.contributor.authorAkbar, S.A.
dc.date.accessioned2021-10-13T04:10:16Z
dc.date.accessioned2022-07-11T09:44:15Z-
dc.date.available2021-10-13T04:10:16Z
dc.date.available2022-07-11T09:44:15Z-
dc.date.issued2019
dc.identifier.citationTharsika T, Thanihaichelvan M, Haseeb ASMA and Akbar SA (2019) Highly Sensitive and Selective Ethanol Sensor Based on ZnO Nanorod on SnO2 Thin Film Fabricated by Spray Pyrolysis. Front. Mater. 6:122. doi: 10.3389/fmats.2019.00122en_US
dc.identifier.urihttp://repo.lib.jfn.ac.lk/ujrr/handle/123456789/3963-
dc.description.abstractThis work reports the fabrication of mixed structure of ZnO nanorod on SnO2 thin film via spray pyrolysis followed by thermal annealing and their gas sensing properties. ZnO/SnO2 nanostructures are successfully prepared on a gold interdigitated alumina substrate by spraying varying mixed precursor concentrations of zinc acetate and tin (IV) chloride pentahydrate solutions in ethanol and thermal annealing. The morphology of the nanostructures is controlled by tailoring the Zn:Sn ratio in the precursor solution mixture. Unique ZnO crystals and ZnO nanorods are observed under a field emission scanning electron microscopy (FESEM) when the Zn/Sn ratio in the precursor solution is in between 13:7 and 17:3 after thermal annealing. The fabricated nanostructures are tested for ethanol, methane and hydrogen in air ambient for various gas concentrations ranging from 25 to 400 ppm and the effect of fabrication conditions on the sensitivity and selectivity are studied. Among the nanostructure sensors studied, the film fabricated with molar ratio of Zn/Sn =3:1 shows better sensitivity and selectivity to ethanol due to high sensing surface area of the nanorod. The response to 25 ppm ethanol is found to be as high as 50 at an operating temperature of 400◦C.en_US
dc.language.isoenen_US
dc.publisherORIGINAL RESEARCHen_US
dc.subjectSpray pyrolysisen_US
dc.subjectZnOen_US
dc.subjectNanoroden_US
dc.subjectSnO2en_US
dc.subjectThin filmen_US
dc.subjectGas sensoren_US
dc.subjectEthanolen_US
dc.subjectNanocompositeen_US
dc.titleHighly Sensitive and Selective Ethanol Sensor Based on ZnO Nanorod on SnO2 Thin Film Fabricated by Spray Pyrolysisen_US
dc.typeArticleen_US
Appears in Collections:Physics



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.