Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2

Randomly oriented ZnO nanowires were grown directly onto alumina substrates having platinum interdigitated screen-printed electrodes via the chemical vapor deposition method using Au as catalyst. Three different Au film thicknesses (i.e., 3, 6 or 12 nm) were used in the growth of nanowires, and thei...

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Autores: Navarrete Gatell, Eric, Güell Vilà, Frank, Martínez-Alanis, Paulina R., Llobet, Eduard
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/184561
Acceso en línea:https://hdl.handle.net/2445/184561
Access Level:acceso abierto
Palabra clave:Òxid de zinc
Nanoestructures
Detectors de gasos
Zinc oxide
Nanostructures
Gas detectors
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spelling Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2Navarrete Gatell, EricGüell Vilà, FrankMartínez-Alanis, Paulina R.Llobet, EduardÒxid de zincNanoestructuresDetectors de gasosZinc oxideNanostructuresGas detectorsRandomly oriented ZnO nanowires were grown directly onto alumina substrates having platinum interdigitated screen-printed electrodes via the chemical vapor deposition method using Au as catalyst. Three different Au film thicknesses (i.e., 3, 6 or 12 nm) were used in the growth of nanowires, and their gas sensing properties were studied for ethanol and NO2 as reducing and oxidizing species, respectively. ZnO nanowires grown employing the 6 nm thick layers were the less defective and showed the most stable, repeatable gas sensing properties. Despite ZnO nanowires grown employing the thickest Au layers reached the highest responses under dry conditions, ZnO nanowires grown using the thinnest Au film were more resilient at detecting NO2 in the presence of ambient moisture. The gas sensing results are discussed in light of the defects and the presence of Au impurities in the ZnO nanowires, as revealed by the characterization techniques used, such as X-ray diffraction, field-emission scanning electron microscopy, X-ray photoelectron spectroscopy and photoluminescence spectroscopy. Promising results were obtained by the implementation of ZnO NWs directly grown over alumina substrates for the detection of ethanol and NO2, substantially ameliorating our previously reported results.Elsevier B.V.2022202220222022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/184561Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1016/j.jallcom.2021.161923Journal of Alloys and Compounds, 2022, vol. 890, p. 161923https://doi.org/10.1016/j.jallcom.2021.161923info:eu-repo/grantAgreement/EC/H2020/823895cc-by-nc-nd (c) Navarrete Gatell, Eric, et al., 2022https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1845612026-05-29T05:05:01Z
dc.title.none.fl_str_mv Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
title Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
spellingShingle Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
Navarrete Gatell, Eric
Òxid de zinc
Nanoestructures
Detectors de gasos
Zinc oxide
Nanostructures
Gas detectors
title_short Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
title_full Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
title_fullStr Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
title_full_unstemmed Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
title_sort Chemical vapour deposited ZnO nanowires for detecting Ethanol and NO2
dc.creator.none.fl_str_mv Navarrete Gatell, Eric
Güell Vilà, Frank
Martínez-Alanis, Paulina R.
Llobet, Eduard
author Navarrete Gatell, Eric
author_facet Navarrete Gatell, Eric
Güell Vilà, Frank
Martínez-Alanis, Paulina R.
Llobet, Eduard
author_role author
author2 Güell Vilà, Frank
Martínez-Alanis, Paulina R.
Llobet, Eduard
author2_role author
author
author
dc.subject.none.fl_str_mv Òxid de zinc
Nanoestructures
Detectors de gasos
Zinc oxide
Nanostructures
Gas detectors
topic Òxid de zinc
Nanoestructures
Detectors de gasos
Zinc oxide
Nanostructures
Gas detectors
description Randomly oriented ZnO nanowires were grown directly onto alumina substrates having platinum interdigitated screen-printed electrodes via the chemical vapor deposition method using Au as catalyst. Three different Au film thicknesses (i.e., 3, 6 or 12 nm) were used in the growth of nanowires, and their gas sensing properties were studied for ethanol and NO2 as reducing and oxidizing species, respectively. ZnO nanowires grown employing the 6 nm thick layers were the less defective and showed the most stable, repeatable gas sensing properties. Despite ZnO nanowires grown employing the thickest Au layers reached the highest responses under dry conditions, ZnO nanowires grown using the thinnest Au film were more resilient at detecting NO2 in the presence of ambient moisture. The gas sensing results are discussed in light of the defects and the presence of Au impurities in the ZnO nanowires, as revealed by the characterization techniques used, such as X-ray diffraction, field-emission scanning electron microscopy, X-ray photoelectron spectroscopy and photoluminescence spectroscopy. Promising results were obtained by the implementation of ZnO NWs directly grown over alumina substrates for the detection of ethanol and NO2, substantially ameliorating our previously reported results.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/184561
url https://hdl.handle.net/2445/184561
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.jallcom.2021.161923
Journal of Alloys and Compounds, 2022, vol. 890, p. 161923
https://doi.org/10.1016/j.jallcom.2021.161923
info:eu-repo/grantAgreement/EC/H2020/823895
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Navarrete Gatell, Eric, et al., 2022
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Navarrete Gatell, Eric, et al., 2022
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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 Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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