Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films

Thin films of tin oxide mixed cerium oxide were grown on unheated substrates by physical vapor deposition. The films were annealed in air at 500 °C for two hours, and were characterized using X-ray photoelectron spectroscopy, atomic force microscopy and optical spectrophotometry. X-ray photoelectron...

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Detalles Bibliográficos
Autores principales: Durrani, Sardar M. A., Al-Kuhaili, Mohammad F., Bakhtiari, Imran A., Haider, Muhammad B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3376601/
https://www.ncbi.nlm.nih.gov/pubmed/22736967
http://dx.doi.org/10.3390/s120302598
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author Durrani, Sardar M. A.
Al-Kuhaili, Mohammad F.
Bakhtiari, Imran A.
Haider, Muhammad B.
author_facet Durrani, Sardar M. A.
Al-Kuhaili, Mohammad F.
Bakhtiari, Imran A.
Haider, Muhammad B.
author_sort Durrani, Sardar M. A.
collection PubMed
description Thin films of tin oxide mixed cerium oxide were grown on unheated substrates by physical vapor deposition. The films were annealed in air at 500 °C for two hours, and were characterized using X-ray photoelectron spectroscopy, atomic force microscopy and optical spectrophotometry. X-ray photoelectron spectroscopy and atomic force microscopy results reveal that the films were highly porous and porosity of our films was found to be in the range of 11.6–21.7%. The films were investigated for the detection of carbon monoxide, and were found to be highly sensitive. We found that 430 °C was the optimum operating temperature for sensing CO gas at concentrations as low as 5 ppm. Our sensors exhibited fast response and recovery times of 26 s and 30 s, respectively.
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spelling pubmed-33766012012-06-25 Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films Durrani, Sardar M. A. Al-Kuhaili, Mohammad F. Bakhtiari, Imran A. Haider, Muhammad B. Sensors (Basel) Article Thin films of tin oxide mixed cerium oxide were grown on unheated substrates by physical vapor deposition. The films were annealed in air at 500 °C for two hours, and were characterized using X-ray photoelectron spectroscopy, atomic force microscopy and optical spectrophotometry. X-ray photoelectron spectroscopy and atomic force microscopy results reveal that the films were highly porous and porosity of our films was found to be in the range of 11.6–21.7%. The films were investigated for the detection of carbon monoxide, and were found to be highly sensitive. We found that 430 °C was the optimum operating temperature for sensing CO gas at concentrations as low as 5 ppm. Our sensors exhibited fast response and recovery times of 26 s and 30 s, respectively. Molecular Diversity Preservation International (MDPI) 2012-02-27 /pmc/articles/PMC3376601/ /pubmed/22736967 http://dx.doi.org/10.3390/s120302598 Text en © 2012 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 license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Durrani, Sardar M. A.
Al-Kuhaili, Mohammad F.
Bakhtiari, Imran A.
Haider, Muhammad B.
Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title_full Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title_fullStr Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title_full_unstemmed Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title_short Investigation of the Carbon Monoxide Gas Sensing Characteristics of Tin Oxide Mixed Cerium Oxide Thin Films
title_sort investigation of the carbon monoxide gas sensing characteristics of tin oxide mixed cerium oxide thin films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3376601/
https://www.ncbi.nlm.nih.gov/pubmed/22736967
http://dx.doi.org/10.3390/s120302598
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