UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
dc.contributor.author | Silva, Luis F. da [UNESP] | |
dc.contributor.author | M'Peko, J. -C. | |
dc.contributor.author | Catto, Ariadne C. | |
dc.contributor.author | Bernardini, Sandrine | |
dc.contributor.author | Mastelaro, Valmor R. | |
dc.contributor.author | Aguir, Khalifa | |
dc.contributor.author | Ribeiro, Caue | |
dc.contributor.author | Longo, Elson [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade de São Paulo (USP) | |
dc.contributor.institution | Aix Marseille Univ | |
dc.contributor.institution | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | |
dc.date.accessioned | 2018-11-26T17:55:57Z | |
dc.date.available | 2018-11-26T17:55:57Z | |
dc.date.issued | 2017-03-01 | |
dc.description.abstract | The 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.affiliation | Sao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, Brazil | |
dc.description.affiliation | Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil | |
dc.description.affiliation | Aix Marseille Univ, CNRS, IM2NP 7334, F-13397 Marseille, France | |
dc.description.affiliation | EMBRAPA Instrumentacao, Rua 15 Novembro 1452, BR-13560970 Sao Carlos, SP, Brazil | |
dc.description.affiliationUnesp | Sao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, Brazil | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description.sponsorship | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
dc.description.sponsorship | Brazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, Brazil | |
dc.description.sponsorshipId | FAPESP: 2013/09573-3 | |
dc.description.sponsorshipId | FAPESP: 2013/07296-2 | |
dc.description.sponsorshipId | FAPESP: 2015/20124-1 | |
dc.description.sponsorshipId | FAPESP: 2012/15170-6 | |
dc.description.sponsorshipId | Brazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, Brazil: LMF-18580 | |
dc.format.extent | 573-579 | |
dc.identifier | http://dx.doi.org/10.1016/j.snb.2016.08.158 | |
dc.identifier.citation | Sensors And Actuators B-chemical. Lausanne: Elsevier Science Sa, v. 240, p. 573-579, 2017. | |
dc.identifier.doi | 10.1016/j.snb.2016.08.158 | |
dc.identifier.file | WOS000390622300067.pdf | |
dc.identifier.issn | 0925-4005 | |
dc.identifier.uri | http://hdl.handle.net/11449/164752 | |
dc.identifier.wos | WOS:000390622300067 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Sensors And Actuators B-chemical | |
dc.relation.ispartofsjr | 1,406 | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Hydrothermal | |
dc.subject | Heterojunction | |
dc.subject | ZnO | |
dc.subject | SnO2 | |
dc.subject | UV light | |
dc.subject | Ozone sensor | |
dc.title | UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
unesp.author.orcid | 0000-0002-8908-6343[7] | |
unesp.author.orcid | 0000-0001-8062-7791[8] |
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