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Subzero Temperature Dip-Coating of Sol-Gel Vanadium Pentoxide: Effect of the Deposition Temperature on the Film Structure, Morphology, and Electrochromic Properties

Title:

Subzero Temperature Dip-Coating of Sol-Gel Vanadium Pentoxide: Effect of the Deposition Temperature on the Film Structure, Morphology, and Electrochromic Properties

Almoabadi, Afaf, Alsawafta, Mohammed, Badilescu, Simona, Stancovski, Victor, Sharma, Tanu, Brüning, Ralf and Truong, Vo-Van ORCID: https://orcid.org/0000-0003-3535-3749 (2016) Subzero Temperature Dip-Coating of Sol-Gel Vanadium Pentoxide: Effect of the Deposition Temperature on the Film Structure, Morphology, and Electrochromic Properties. Journal of Nanomaterials, 2016 . pp. 1-10. ISSN 1687-4110

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Official URL: http://dx.doi.org/10.1155/2016/4595869

Abstract

Vanadium pentoxide sol-gel prepared thin films were deposited on indium-tin-oxide (ITO) substrates by dip-coating at a subzero temperature (−10°C). The structure, morphology, and optical and electrochromic properties of dense and porous vanadium oxide films coated at low temperature were determined and compared to those of the corresponding films deposited under room-temperature conditions. The results indicated that, in the films coated at −10°C, a residual compressive stress exists that would originate from the formation of microvoids during the deposition. These microvoids are preserved during the heat treatment of the films. The microvoid morphology would favor the formation of nanostructures that would be responsible for the improved electrochromic properties of the subzero dip-coated films. Low-temperature coated films, heated at 450°C for several hours, undergo the transformation from a layered to a highly uniform nanorod structure that would be an important feature for different applications.

Divisions:Concordia University > Faculty of Arts and Science > Physics
Item Type:Article
Refereed:Yes
Authors:Almoabadi, Afaf and Alsawafta, Mohammed and Badilescu, Simona and Stancovski, Victor and Sharma, Tanu and Brüning, Ralf and Truong, Vo-Van
Journal or Publication:Journal of Nanomaterials
Date:2016
Funders:
  • Concordia Open Access Author Fund
Digital Object Identifier (DOI):10.1155/2016/4595869
ID Code:982268
Deposited By: DANIELLE DENNIE
Deposited On:21 Mar 2017 17:47
Last Modified:18 Jan 2018 17:54
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