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VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties

Işıl Top, Russell Binions, Michael Warwick Orcid Logo, Charles W. Dunnill, Marcin Holdynski, Isaac Abrahams, Charlie Dunnill Orcid Logo

Journal of Materials Chemistry C, Volume: 6, Issue: 16, Pages: 4485 - 4493

Swansea University Authors: Michael Warwick Orcid Logo, Charlie Dunnill Orcid Logo

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DOI (Published version): 10.1039/C8TC00835C

Abstract

Vanadium dioxide/titanium dioxide bilayer films have been investigated as a thermochromic coating for application as intelligent window glazings for buildings. The nanostructured VO2 and TiO2 films were deposited on fluorine doped tin oxide coated glass substrates using electric field assisted aeros...

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Published in: Journal of Materials Chemistry C
ISSN: 2050-7526 2050-7534
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa39344
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spelling 2022-12-06T15:49:09.0039174 v2 39344 2018-04-09 VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties 9fdabb7283ffccc5898cc543305475cf 0000-0002-9028-1250 Michael Warwick Michael Warwick true false 0c4af8958eda0d2e914a5edc3210cd9e 0000-0003-4052-6931 Charlie Dunnill Charlie Dunnill true false 2018-04-09 FGSEN Vanadium dioxide/titanium dioxide bilayer films have been investigated as a thermochromic coating for application as intelligent window glazings for buildings. The nanostructured VO2 and TiO2 films were deposited on fluorine doped tin oxide coated glass substrates using electric field assisted aerosol assisted chemical vapour deposition (ElFi-AACVD) and sol-gel spin coating, respectively. Their thermochromic properties were investigated using scanning electron microscopy, X-ray diffraction, variable temperature UV/Vis/NIR and X-ray photoelectron spectroscopies. Compared to bare VO2 films, the VO2/TiO2 bilayer films exhibit an increase in visible light transmittance of up to 30%, an increase in integrated luminous transmisttance, with values up to 66%, and a higher transmittance modulation in the near infrared of up to 20% at the thermochromic transition temperature. The TiO2 top layer not only enhances visible light transmittance, but also serves to protect the VO2 bottom layer from oxidation. The bilayer films are shown to exhibit photo-induced super-hydrophilicity. These properties are affected by the morphology of the VO2 under-layer. Journal Article Journal of Materials Chemistry C 6 16 4485 4493 2050-7526 2050-7534 31 12 2018 2018-12-31 10.1039/C8TC00835C COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2022-12-06T15:49:09.0039174 2018-04-09T11:16:46.0921942 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Işıl Top 1 Russell Binions 2 Michael Warwick 0000-0002-9028-1250 3 Charles W. Dunnill 4 Marcin Holdynski 5 Isaac Abrahams 6 Charlie Dunnill 0000-0003-4052-6931 7 0039344-09042018111931.pdf top2018.pdf 2018-04-09T11:19:31.1270000 Output 10373793 application/pdf Accepted Manuscript true 2019-04-02T00:00:00.0000000 true eng
title VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
spellingShingle VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
Michael Warwick
Charlie Dunnill
title_short VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
title_full VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
title_fullStr VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
title_full_unstemmed VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
title_sort VO2/TiO2 bilayer films for energy efficient windows with multifunctional properties
author_id_str_mv 9fdabb7283ffccc5898cc543305475cf
0c4af8958eda0d2e914a5edc3210cd9e
author_id_fullname_str_mv 9fdabb7283ffccc5898cc543305475cf_***_Michael Warwick
0c4af8958eda0d2e914a5edc3210cd9e_***_Charlie Dunnill
author Michael Warwick
Charlie Dunnill
author2 Işıl Top
Russell Binions
Michael Warwick
Charles W. Dunnill
Marcin Holdynski
Isaac Abrahams
Charlie Dunnill
format Journal article
container_title Journal of Materials Chemistry C
container_volume 6
container_issue 16
container_start_page 4485
publishDate 2018
institution Swansea University
issn 2050-7526
2050-7534
doi_str_mv 10.1039/C8TC00835C
college_str Faculty of Science and Engineering
hierarchytype
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 - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description Vanadium dioxide/titanium dioxide bilayer films have been investigated as a thermochromic coating for application as intelligent window glazings for buildings. The nanostructured VO2 and TiO2 films were deposited on fluorine doped tin oxide coated glass substrates using electric field assisted aerosol assisted chemical vapour deposition (ElFi-AACVD) and sol-gel spin coating, respectively. Their thermochromic properties were investigated using scanning electron microscopy, X-ray diffraction, variable temperature UV/Vis/NIR and X-ray photoelectron spectroscopies. Compared to bare VO2 films, the VO2/TiO2 bilayer films exhibit an increase in visible light transmittance of up to 30%, an increase in integrated luminous transmisttance, with values up to 66%, and a higher transmittance modulation in the near infrared of up to 20% at the thermochromic transition temperature. The TiO2 top layer not only enhances visible light transmittance, but also serves to protect the VO2 bottom layer from oxidation. The bilayer films are shown to exhibit photo-induced super-hydrophilicity. These properties are affected by the morphology of the VO2 under-layer.
published_date 2018-12-31T03:49:57Z
_version_ 1763752434783485952
score 11.035634

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