Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Pulsed UV light activated gas sensing in tungsten oxide nanowires

  • Identification data

    Identifier: imarina:9385575
    Authors:
    Gonzalez, OWelearegay, TLlobet, EVilanova, X
    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.
  • Others:

    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
    Author identifier: 0000-0001-6164-4342 0000-0002-6245-7933
    Record's date: 2024-10-12
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S1877705816334270
    Papper 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
  • Keywords:

    Engineering (Miscellaneous)
    Zn
    Wo3 nanoneedles
    Sensors
    Room-temperature
    Pulsed uv activation
    Property
    No2 sensor
    No2 senso
    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
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