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Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition

Anupriya J. T. Naik, Michael Warwick Orcid Logo, Savio J. A. Moniz, Christopher S. Blackman, Ivan P. Parkin, Russell Binions

J. Mater. Chem. A, Volume: 1, Issue: 5, Pages: 1827 - 1833

Swansea University Author: Michael Warwick Orcid Logo

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DOI (Published version): 10.1039/c2ta01126c

Abstract

Nanostructured thin films of tungsten trioxide were deposited on to gas sensor substrates at 600 °C from the aerosol assisted chemical vapour deposition reaction of tungsten hexaphenoxide solutions in toluene under the influence of electric fields. The electric fields were generated by applying a po...

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Published in: J. Mater. Chem. A
ISSN: 2050-7488 2050-7496
Published: 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa32774
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last_indexed 2018-02-09T05:21:04Z
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spelling 2017-04-03T13:55:19.4552966 v2 32774 2017-03-29 Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition 9fdabb7283ffccc5898cc543305475cf 0000-0002-9028-1250 Michael Warwick Michael Warwick true false 2017-03-29 Nanostructured thin films of tungsten trioxide were deposited on to gas sensor substrates at 600 °C from the aerosol assisted chemical vapour deposition reaction of tungsten hexaphenoxide solutions in toluene under the influence of electric fields. The electric fields were generated by applying a potential difference between the inter-digitated electrodes of the gas sensor substrates during the deposition. The deposited films were characterised using scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The application of an electric field, encouraged formation of enhanced nanostructured morphologies, with an increase in needle length and reduction in needle diameter being observed. The film gas sensor properties were also examined; it was found that the highest response of 110 to 800 ppb NO2 was given by a sensor grown under the influence of a 1.8 × 104 V m−1 electric field and operated at 250 °C, a 2.5 times enhancement compared to a sensor grown in the absence of an electric field under its optimal operating conditions. Journal Article J. Mater. Chem. A 1 5 1827 1833 2050-7488 2050-7496 31 12 2013 2013-12-31 10.1039/c2ta01126c http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&amp;SrcAuth=ORCID&amp;SrcApp=OrcidOrg&amp;DestLinkType=FullRecord&amp;DestApp=WOS_CPL&amp;KeyUT=WOS:000314640100041&amp;KeyUID=WOS:000314640100041 COLLEGE NANME COLLEGE CODE Swansea University 2017-04-03T13:55:19.4552966 2017-03-29T09:53:04.8632033 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Anupriya J. T. Naik 1 Michael Warwick 0000-0002-9028-1250 2 Savio J. A. Moniz 3 Christopher S. Blackman 4 Ivan P. Parkin 5 Russell Binions 6
title Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
spellingShingle Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
Michael Warwick
title_short Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
title_full Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
title_fullStr Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
title_full_unstemmed Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
title_sort Nanostructured tungsten oxide gas sensors prepared by electric field assisted aerosol assisted chemical vapour deposition
author_id_str_mv 9fdabb7283ffccc5898cc543305475cf
author_id_fullname_str_mv 9fdabb7283ffccc5898cc543305475cf_***_Michael Warwick
author Michael Warwick
author2 Anupriya J. T. Naik
Michael Warwick
Savio J. A. Moniz
Christopher S. Blackman
Ivan P. Parkin
Russell Binions
format Journal article
container_title J. Mater. Chem. A
container_volume 1
container_issue 5
container_start_page 1827
publishDate 2013
institution Swansea University
issn 2050-7488
2050-7496
doi_str_mv 10.1039/c2ta01126c
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
url http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&amp;SrcAuth=ORCID&amp;SrcApp=OrcidOrg&amp;DestLinkType=FullRecord&amp;DestApp=WOS_CPL&amp;KeyUT=WOS:000314640100041&amp;KeyUID=WOS:000314640100041
document_store_str 0
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description Nanostructured thin films of tungsten trioxide were deposited on to gas sensor substrates at 600 °C from the aerosol assisted chemical vapour deposition reaction of tungsten hexaphenoxide solutions in toluene under the influence of electric fields. The electric fields were generated by applying a potential difference between the inter-digitated electrodes of the gas sensor substrates during the deposition. The deposited films were characterised using scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The application of an electric field, encouraged formation of enhanced nanostructured morphologies, with an increase in needle length and reduction in needle diameter being observed. The film gas sensor properties were also examined; it was found that the highest response of 110 to 800 ppb NO2 was given by a sensor grown under the influence of a 1.8 × 104 V m−1 electric field and operated at 250 °C, a 2.5 times enhancement compared to a sensor grown in the absence of an electric field under its optimal operating conditions.
published_date 2013-12-31T19:05:52Z
_version_ 1821342907667316736
score 11.04748

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