A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device

In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. It is based on the Kelvin probe approach. Porous ZnO nanostructured thin films deposited by the direct current (DC) reactive magnetron sputtering method are used as the active ga...

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Detalles Bibliográficos
Autores principales: Kwoka, Monika, Borysiewicz, Michal A., Tomkiewicz, Pawel, Piotrowska, Anna, Szuber, Jacek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165510/
https://www.ncbi.nlm.nih.gov/pubmed/30177613
http://dx.doi.org/10.3390/s18092919
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author Kwoka, Monika
Borysiewicz, Michal A.
Tomkiewicz, Pawel
Piotrowska, Anna
Szuber, Jacek
author_facet Kwoka, Monika
Borysiewicz, Michal A.
Tomkiewicz, Pawel
Piotrowska, Anna
Szuber, Jacek
author_sort Kwoka, Monika
collection PubMed
description In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. It is based on the Kelvin probe approach. Porous ZnO nanostructured thin films deposited by the direct current (DC) reactive magnetron sputtering method are used as the active gas sensing electrode material. Crucially, the obtained gas sensing material exhibited a nanocoral surface morphology and surface Zn to O non-stoichiometry with respect to its bulk mass. Among other responses, the demonstrated SPV gas sensor device exhibits a high response to an NO(2) concentration as low as 1 ppm, with a signal to noise ratio of about 50 and a fast response time of several seconds under room temperature conditions.
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spelling pubmed-61655102018-10-10 A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device Kwoka, Monika Borysiewicz, Michal A. Tomkiewicz, Pawel Piotrowska, Anna Szuber, Jacek Sensors (Basel) Article In this paper a novel type of a highly sensitive gas sensor device based on the surface photovoltage effect is described. It is based on the Kelvin probe approach. Porous ZnO nanostructured thin films deposited by the direct current (DC) reactive magnetron sputtering method are used as the active gas sensing electrode material. Crucially, the obtained gas sensing material exhibited a nanocoral surface morphology and surface Zn to O non-stoichiometry with respect to its bulk mass. Among other responses, the demonstrated SPV gas sensor device exhibits a high response to an NO(2) concentration as low as 1 ppm, with a signal to noise ratio of about 50 and a fast response time of several seconds under room temperature conditions. MDPI 2018-09-03 /pmc/articles/PMC6165510/ /pubmed/30177613 http://dx.doi.org/10.3390/s18092919 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kwoka, Monika
Borysiewicz, Michal A.
Tomkiewicz, Pawel
Piotrowska, Anna
Szuber, Jacek
A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title_full A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title_fullStr A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title_full_unstemmed A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title_short A Novel Type Room Temperature Surface Photovoltage Gas Sensor Device
title_sort novel type room temperature surface photovoltage gas sensor device
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165510/
https://www.ncbi.nlm.nih.gov/pubmed/30177613
http://dx.doi.org/10.3390/s18092919
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