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Thermochromic vanadium dioxide thin films from electric field assisted aerosol assisted chemical vapour deposition

Michael Warwick Orcid Logo, Ian Ridley, Russell Binions

Surface and Coatings Technology, Volume: 230, Pages: 163 - 167

Swansea University Author: Michael Warwick Orcid Logo

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DOI (Published version): 10.1016/j.surfcoat.2013.06.077

Abstract

Thermochromic vanadium dioxide thin films were deposited via aerosol assisted chemical vapour deposition from a precursor solution of vanadyl acetylacetonate in ethanol at 525 °C on to fluorine doped tin oxide coated glass substrates. A potential difference was applied between the top plate and subs...

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Published in: Surface and Coatings Technology
ISSN: 0257-8972
Published: 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa32776
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Abstract: Thermochromic vanadium dioxide thin films were deposited via aerosol assisted chemical vapour deposition from a precursor solution of vanadyl acetylacetonate in ethanol at 525 °C on to fluorine doped tin oxide coated glass substrates. A potential difference was applied between the top plate and substrate during the deposition to generate an electric field with a positive bias applied to the substrate. The films produced were analysed and characterised by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, contact angle and variable temperature UV/Visible spectroscopy. It was found that the presence of an electric field during deposition could lead to a marked change in the microstructure and functional properties of the deposited films; specifically the wetting and thermochromic properties. An increase in field strength lead to a reduction in crystallite and agglomerate size compared to films grown without the presence of an electric field.
Keywords: Chemical vapour deposition; Thermochromic; Electric fields; Vanadium dioxide
College: Faculty of Science and Engineering
Start Page: 163
End Page: 167

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