UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature

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dc.contributor.authorSilva, Luis F. da [UNESP]
dc.contributor.authorM'Peko, J. -C.
dc.contributor.authorCatto, Ariadne C.
dc.contributor.authorBernardini, Sandrine
dc.contributor.authorMastelaro, Valmor R.
dc.contributor.authorAguir, Khalifa
dc.contributor.authorRibeiro, Caue
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionAix Marseille Univ
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2018-11-26T17:55:57Z
dc.date.available2018-11-26T17:55:57Z
dc.date.issued2017-03-01
dc.description.abstractThe sensitivity of ZnO-SnO2 heterojunctions to ozone gas was investigated in this work, the two-phase materials of which were prepared via a hydrothermal route, resulting in nanocomposites in which the formation of heterojunctions was confirmed by microscopy analyses. While the sensing effectiveness of these materials is currently verified for application above 150 degrees C, these temperatures are here drastically reduced to room temperature by considering sensing activity under continuous UV irradiation, even for ozone concentrations as low as 20 ppb. This approach resulted in a fast sensing response, a short recovery time and a good selectivity compared to other gases, demonstrating a great potential of such heterojunctions for applications in environmental monitoring devices. (C) 2016 Elsevier B.V. All rights reserved.en
dc.description.affiliationSao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationAix Marseille Univ, CNRS, IM2NP 7334, F-13397 Marseille, France
dc.description.affiliationEMBRAPA Instrumentacao, Rua 15 Novembro 1452, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipBrazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, Brazil
dc.description.sponsorshipIdFAPESP: 2013/09573-3
dc.description.sponsorshipIdFAPESP: 2013/07296-2
dc.description.sponsorshipIdFAPESP: 2015/20124-1
dc.description.sponsorshipIdFAPESP: 2012/15170-6
dc.description.sponsorshipIdBrazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, Brazil: LMF-18580
dc.format.extent573-579
dc.identifierhttp://dx.doi.org/10.1016/j.snb.2016.08.158
dc.identifier.citationSensors And Actuators B-chemical. Lausanne: Elsevier Science Sa, v. 240, p. 573-579, 2017.
dc.identifier.doi10.1016/j.snb.2016.08.158
dc.identifier.fileWOS000390622300067.pdf
dc.identifier.issn0925-4005
dc.identifier.urihttp://hdl.handle.net/11449/164752
dc.identifier.wosWOS:000390622300067
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSensors And Actuators B-chemical
dc.relation.ispartofsjr1,406
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectHydrothermal
dc.subjectHeterojunction
dc.subjectZnO
dc.subjectSnO2
dc.subjectUV light
dc.subjectOzone sensor
dc.titleUV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperatureen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-8908-6343[7]
unesp.author.orcid0000-0001-8062-7791[8]

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