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

Detalhes bibliográficos
Autor(a) principal: Silva, Luis F. da [UNESP]
Data de Publicação: 2017
Outros Autores: M'Peko, J. -C., Catto, Ariadne C., Bernardini, Sandrine, Mastelaro, Valmor R., Aguir, Khalifa, Ribeiro, Caue, Longo, Elson [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
DOI: 10.1016/j.snb.2016.08.158
Texto Completo: http://dx.doi.org/10.1016/j.snb.2016.08.158
http://hdl.handle.net/11449/164752
Resumo: 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.
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spelling UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperatureHydrothermalHeterojunctionZnOSnO2UV lightOzone sensorThe 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.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Brazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, BrazilSao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, BrazilUniv Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, BrazilAix Marseille Univ, CNRS, IM2NP 7334, F-13397 Marseille, FranceEMBRAPA Instrumentacao, Rua 15 Novembro 1452, BR-13560970 Sao Carlos, SP, BrazilSao Paulo State Univ, Inst Chem, LIEC, POB 355, BR-14800900 Araraquara, SP, BrazilFAPESP: 2013/09573-3FAPESP: 2013/07296-2FAPESP: 2015/20124-1FAPESP: 2012/15170-6Brazilian Nanotechnology National Laboratory (LNNano), Microfabrication laboratory, Campinas, SP, Brazil: LMF-18580Elsevier B.V.Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Aix Marseille UnivEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Silva, Luis F. da [UNESP]M'Peko, J. -C.Catto, Ariadne C.Bernardini, SandrineMastelaro, Valmor R.Aguir, KhalifaRibeiro, CaueLongo, Elson [UNESP]2018-11-26T17:55:57Z2018-11-26T17:55:57Z2017-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article573-579application/pdfhttp://dx.doi.org/10.1016/j.snb.2016.08.158Sensors And Actuators B-chemical. Lausanne: Elsevier Science Sa, v. 240, p. 573-579, 2017.0925-4005http://hdl.handle.net/11449/16475210.1016/j.snb.2016.08.158WOS:000390622300067WOS000390622300067.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSensors And Actuators B-chemical1,406info:eu-repo/semantics/openAccess2023-11-08T06:14:40Zoai:repositorio.unesp.br:11449/164752Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:11:01.994634Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
title UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
spellingShingle UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
Silva, Luis F. da [UNESP]
Hydrothermal
Heterojunction
ZnO
SnO2
UV light
Ozone sensor
Silva, Luis F. da [UNESP]
Hydrothermal
Heterojunction
ZnO
SnO2
UV light
Ozone sensor
title_short UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
title_full UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
title_fullStr UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
title_full_unstemmed UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
title_sort UV-enhanced ozone gas sensing response of ZnO-SnO2 heterojunctions at room temperature
author Silva, Luis F. da [UNESP]
author_facet Silva, Luis F. da [UNESP]
Silva, Luis F. da [UNESP]
M'Peko, J. -C.
Catto, Ariadne C.
Bernardini, Sandrine
Mastelaro, Valmor R.
Aguir, Khalifa
Ribeiro, Caue
Longo, Elson [UNESP]
M'Peko, J. -C.
Catto, Ariadne C.
Bernardini, Sandrine
Mastelaro, Valmor R.
Aguir, Khalifa
Ribeiro, Caue
Longo, Elson [UNESP]
author_role author
author2 M'Peko, J. -C.
Catto, Ariadne C.
Bernardini, Sandrine
Mastelaro, Valmor R.
Aguir, Khalifa
Ribeiro, Caue
Longo, Elson [UNESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Aix Marseille Univ
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Silva, Luis F. da [UNESP]
M'Peko, J. -C.
Catto, Ariadne C.
Bernardini, Sandrine
Mastelaro, Valmor R.
Aguir, Khalifa
Ribeiro, Caue
Longo, Elson [UNESP]
dc.subject.por.fl_str_mv Hydrothermal
Heterojunction
ZnO
SnO2
UV light
Ozone sensor
topic Hydrothermal
Heterojunction
ZnO
SnO2
UV light
Ozone sensor
description 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.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
2018-11-26T17:55:57Z
2018-11-26T17:55:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.snb.2016.08.158
Sensors And Actuators B-chemical. Lausanne: Elsevier Science Sa, v. 240, p. 573-579, 2017.
0925-4005
http://hdl.handle.net/11449/164752
10.1016/j.snb.2016.08.158
WOS:000390622300067
WOS000390622300067.pdf
url http://dx.doi.org/10.1016/j.snb.2016.08.158
http://hdl.handle.net/11449/164752
identifier_str_mv Sensors And Actuators B-chemical. Lausanne: Elsevier Science Sa, v. 240, p. 573-579, 2017.
0925-4005
10.1016/j.snb.2016.08.158
WOS:000390622300067
WOS000390622300067.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sensors And Actuators B-chemical
1,406
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 573-579
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1822182411866210304
dc.identifier.doi.none.fl_str_mv 10.1016/j.snb.2016.08.158