Author, as appears in the article.: Roso, Sergio; Gueell, Frank; Martinez-Alanis, Paulina R; Urakawa, Atsushi; Llobet, Eduard
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Llobet Valero, Eduard
Keywords: Zno nanowires (nws) Zno nanowires Zinc oxide Vapor-liquid-solid techniques Substrates Sapphire Nanowires Gases Gas sensing properties Gas sensing electrodes Gas sensing characteristics Gas sensing applications Gas detectors Defects Chemical detection C-plane substrates A-plane sapphire
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. © 2016 Published by Elsevier B.V.
Thematic Areas: Surfaces, coatings and films Spectroscopy Química Odontología Nutrição Metals and alloys Medicina ii Medicina i Materials chemistry Materiais Interdisciplinar Instruments & instrumentation Instrumentation Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Electronic, optical and magnetic materials Electrochemistry Electrical and electronic engineering Educação física Educação Economia Condensed matter physics Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Astronomia / física Analytical chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: eduard.llobet@urv.cat
Author identifier: 0000-0001-6164-4342
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0925400516301976
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Sensors And Actuators B-Chemical. 230 109-114
APA: Roso, Sergio; Gueell, Frank; Martinez-Alanis, Paulina R; Urakawa, Atsushi; Llobet, Eduard (2016). Synthesis of ZnO nanowires and impacts of their orientation and defects on their gas sensing properties. Sensors And Actuators B-Chemical, 230(), 109-114. DOI: 10.1016/j.snb.2016.02.048
Article's DOI: 10.1016/j.snb.2016.02.048
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Journal Publications
Repositori URV