Synthesis of ZnO nanowires and impacts of their orientation and defects on gas sensing properties

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RECERCAT Principal > Universitat de Barcelona > Enginyeria Electrònica i Biomèdica > Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) > Visualizar documento

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dc.contributor	Universitat de Barcelona
dc.contributor.author	Roso, Sergio
dc.contributor.author	Güell Vilà, Frank
dc.contributor.author	Martínez-Alanis, P. R.
dc.contributor.author	Urakawa, Atushi
dc.contributor.author	Llobet, Eduard
dc.date	2018-10-04T16:56:22Z
dc.date	2018-10-04T16:56:22Z
dc.date	2016-05-02
dc.date	2018-10-04T16:56:22Z
dc.identifier.citation	0925-4005
dc.identifier.citation	661874
dc.identifier.uri	http://hdl.handle.net/2445/125079
dc.format	6 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	Elsevier B.V.
dc.relation	Versió postprint del document publicat a: https://doi.org/10.1016/j.snb.2016.02.048
dc.relation	Sensors and Actuators B-Chemical, 2016, vol. 230, p. 109-114
dc.relation	https://doi.org/10.1016/j.snb.2016.02.048
dc.rights	cc-by-nc-nd (c) Elsevier B.V., 2016
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es
dc.subject	Nanotubs
dc.subject	Detectors de gasos
dc.subject	Nanotubes
dc.subject	Gas detectors
dc.title	Synthesis of ZnO nanowires and impacts of their orientation and defects on gas sensing properties
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/acceptedVersion
dc.description.abstract	ZnO nanowires (NWs) oriented in three different directions were synthesized via the vapor-liquid-solid technique over c-, r- and a-plane sapphire substrates. Gas sensing properties of these samples against reducing and oxidizing gases were examined. ZnO NWs grown on the c-plane substrate showed the highest response to oxidizing gases (NO2), while those grown on the a-plane substrate were more responsive to reducing one (ethanol). According to the insights gained by photoluminescence studies, the distinct responses were clearly correlated with the quantity and type of defects present in the material, and ultimately, relating the orientation of the different ZnO NWs sensors to their gas sensing characteristics, showing a possible rational strategy to tailor oxide nanomaterials for gas sensing applications.

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