Sputter deposited tungsten oxide thin films and nanopillars: Electrochromic perspective

Naveen Kumar, K and Shaik, H and Gupta, J and Sattar, SA and Jafri, RI and Pawar, A and Madhavi, V and G V, AR and G, N (2022) Sputter deposited tungsten oxide thin films and nanopillars: Electrochromic perspective. In: Materials Chemistry and Physics, 278 .

PDF mat_che_phy_278_2022.pdf Restricted to Registered users only Download (12MB)

Abstract

Tungsten oxide (WO3) thin films and nano pillars were grown on FTO and corning substrates by using DC magnetron sputtering. Structural properties, surface morphology, optical properties, and electrochromic properties were systematically characterized by using SEM, XRD, UV�Vis Spectrometer, and Electrochemical Analyser respectively. Increased oxygen partial pressure resulted a rise in the optical transmittance from 72 to 89 at a wavelength of 600 nm. Moreover, coloration efficiency was also found to vary with partial pressures for both planar and glad from 30.48 cm2C-1 to 78.36 cm2C-1. We observe that glad deposited nano pillars showing higher coloration efficiency as compared to the planar thin film. The coloration efficiency found for the planar thin film and nano pillars at optimized partial pressure are 37.04 cm2C-1 and 78.36 cm2C-1 respectively. A strong influence of oxygen partial pressure and surface to volume ratio has been observed on the coloration efficiency, which can play a major role in the electrochromic application. © 2022 Elsevier B.V.

Item Type:	Journal Article
Publication:	Materials Chemistry and Physics
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Keywords:	Efficiency; Electrochromic devices; Electrochromism; Morphology; Oxide films; Oxides; Oxygen; Partial pressure; Surface morphology; Thin films, Coloration efficiencies; Electrochromic properties; Electrochromics; Glad; Magnetron-sputtering; Oxygen partial pressure; Planar; Thin-films; Tungsten oxide (WO3); Tungsten oxide thin films, Tungsten compounds
Department/Centre:	Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research
Date Deposited:	27 Jan 2022 11:44
Last Modified:	27 Jan 2022 11:44
URI:	http://eprints.iisc.ac.in/id/eprint/71014

Actions (login required)

View Item