Author, as appears in the article.: Gonzalez, O; Welearegay, T; Llobet, E; Vilanova, X
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Llobet Valero, Eduard / Vilanova Salas, Javier
Keywords: Zn; Wo3 nanoneedles; Sensors; Room-temperature; Pulsed uv activation; Property; No2 sensor; No2 senso
Abstract: The present work shows a new way to analyze transient responses of MOX sensors under Pulsed-UV light, that can improve response dynamics and mitigate drift. In particular, we focus on the gas response analysis of tungsten oxide (WO3-x) nanoneedles when exposed to NO2. It is known that temperature modulation is useful for extracting more information about the pollutant gases, so we have modulated UV source (325 nm) in order to study the transients of oxidation (when UV is Off for 30 s) and transients of surface reduction or cleaning (UV On for 30 s). Using pulsed UV light activated sensing allows us to obtain responses, even at room temperature, and significantly reduce power consumption. (C) 2016 The Authors. Published by Elsevier Ltd.
Thematic Areas: Química; Odontología; Medicina ii; Medicina i; Materiais; Interdisciplinar; General engineering; Farmacia; Engineering (miscellaneous); Engineering (all); Engenharias iv; Engenharias iii; Engenharias ii; Enfermagem; Ciências biológicas iii; Ciências biológicas ii; Ciências biológicas i; Ciências ambientais; Ciência de alimentos; Biotecnología; Astronomia / física; Arquitetura, urbanismo e design; Arquitetura e urbanismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: eduard.llobet@urv.cat; xavier.vilanova@urv.cat
Record's date: 2024-10-12
Paper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S1877705816334270
Paper original source: Procedia Engineering. 168 351-354
APA: Gonzalez, O; Welearegay, T; Llobet, E; Vilanova, X (2016). Pulsed UV light activated gas sensing in tungsten oxide nanowires. Amsterdam: Elsevier
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.proeng.2016.11.118
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Proceedings Paper
Repositori URV