Modification in the microstructural and electrochromic properties of spray-pyrolysed WO 3 thin films upon Mo doping

Kumar, A and Prajapati, CS and Sahay, PP (2019) Modification in the microstructural and electrochromic properties of spray-pyrolysed WO 3 thin films upon Mo doping. In: Journal of Sol-Gel Science and Technology .

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Abstract

Abstract: WO 3 thin films were grown onto the glass and fluorine-doped tin oxide-coated glass substrates using chemical spray pyrolysis technique. X-ray diffraction analyses reveal that all the films possess orthorhombic phase of WO 3 . Morphologies of the films have been found to vary with Mo-doping concentrations. Three-dimensional atomic force micrographs reveal that the 5 at Mo-doped film has the maximum image surface area and is optimal for improved electrochromic performance. Cyclic voltammetry studies show that the cathodic and anodic peak current densities have the highest values for the 5 at Mo-doped WO 3 film. Relative to the undoped film, the change from coloured to bleached state is faster for the 5 at Mo-doped WO 3 film. Considering the reversibility and the switching response from chronoamperometry and the coloration efficiency from cyclic voltammetry, it has been concluded that the 5 at Mo-doped WO 3 film has an optimal electrochromic response. Figure not available: see fulltext.. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.

Item Type:	Journal Article
Publication:	Journal of Sol-Gel Science and Technology
Publisher:	Springer New York LLC
Additional Information:	Copyright for this article belongs to Springer.
Keywords:	Chronoamperometry; Cyclic voltammetry; Efficiency; Electrochromism; Glass; Image enhancement; Molybdenum; Nanocomposites; Oxide films; Semiconductor doping; Spray pyrolysis; Substrates; Tin oxides; Tungsten compounds; X ray diffraction analysis, Anodic peak current density; Atomic force micrographs; Chemical spray pyrolysis; Coloration efficiencies; Electrochromic performance; Electrochromic properties; Fluorine doped tin oxide; WO3 thin films, Thin films
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	09 Apr 2019 06:37
Last Modified:	09 Apr 2019 06:37
URI:	http://eprints.iisc.ac.in/id/eprint/62172

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