Study of novel WO3-PEDOT:PSS bilayered thin film for electrochromic applications

S. S. Kalagi; D. S. Dalavi; S. S. Mali; A. I. Inamdar; R. S. Patil; P. S. Patil

doi:10.1166/nnl.2012.1452

Study of novel WO₃-PEDOT:PSS bilayered thin film for electrochromic applications

S. S. Kalagi, D. S. Dalavi, S. S. Mali, A. I. Inamdar, R. S. Patil, P. S. Patil

Division of System Semiconductor

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

In this paper we report novel bilayered WO₃-PEDOT:PSS films synthesized for electrochromic device (ECD) applications. The films show synergetic properties of both WO₃ and PEDOT:PSS. Absorbance spectra reveals the dominance of the optical properties of PEDOT:PSS over WO₃ and the formation of polaron/bipolaron bands with change in potential. The fractal concept has been used to calculate the fractal dimensions of the reaction sites. The WO₃-PEDOT:PSS thin films exhibit excellent cathodic electrochromism with transmittance modulation of 63%, response times of 5.71/5.59 s in their color/bleach state and enhanced electrochromic coloration efficiency of 74.60 cm²/C compared to that of pure WO₃ (47 cm²/C) thin films. Colorimetric analysis shows that the curve on the chromaticity diagram follows a linear trajectory on the application of varying reduction potential.

Original language	English
Pages (from-to)	1146-1154
Number of pages	9
Journal	Nanoscience and Nanotechnology Letters
Volume	4
Issue number	12
DOIs	https://doi.org/10.1166/nnl.2012.1452
State	Published - Dec 2012

Keywords

Colorimetric analysis
PEDOT:PSS films
R.F. magnetron sputtering
WO -PEDOT:PSS films
WO films

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10.1166/nnl.2012.1452

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title = "Study of novel WO3-PEDOT:PSS bilayered thin film for electrochromic applications",

abstract = "In this paper we report novel bilayered WO3-PEDOT:PSS films synthesized for electrochromic device (ECD) applications. The films show synergetic properties of both WO3 and PEDOT:PSS. Absorbance spectra reveals the dominance of the optical properties of PEDOT:PSS over WO3 and the formation of polaron/bipolaron bands with change in potential. The fractal concept has been used to calculate the fractal dimensions of the reaction sites. The WO3-PEDOT:PSS thin films exhibit excellent cathodic electrochromism with transmittance modulation of 63%, response times of 5.71/5.59 s in their color/bleach state and enhanced electrochromic coloration efficiency of 74.60 cm2/C compared to that of pure WO3 (47 cm2/C) thin films. Colorimetric analysis shows that the curve on the chromaticity diagram follows a linear trajectory on the application of varying reduction potential.",

keywords = "Colorimetric analysis, PEDOT:PSS films, R.F. magnetron sputtering, WO -PEDOT:PSS films, WO films",

author = "Kalagi, {S. S.} and Dalavi, {D. S.} and Mali, {S. S.} and Inamdar, {A. I.} and Patil, {R. S.} and Patil, {P. S.}",

year = "2012",

month = dec,

doi = "10.1166/nnl.2012.1452",

language = "English",

volume = "4",

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journal = "Nanoscience and Nanotechnology Letters",

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AU - Kalagi, S. S.

AU - Dalavi, D. S.

AU - Mali, S. S.

AU - Inamdar, A. I.

AU - Patil, R. S.

AU - Patil, P. S.

PY - 2012/12

Y1 - 2012/12

N2 - In this paper we report novel bilayered WO3-PEDOT:PSS films synthesized for electrochromic device (ECD) applications. The films show synergetic properties of both WO3 and PEDOT:PSS. Absorbance spectra reveals the dominance of the optical properties of PEDOT:PSS over WO3 and the formation of polaron/bipolaron bands with change in potential. The fractal concept has been used to calculate the fractal dimensions of the reaction sites. The WO3-PEDOT:PSS thin films exhibit excellent cathodic electrochromism with transmittance modulation of 63%, response times of 5.71/5.59 s in their color/bleach state and enhanced electrochromic coloration efficiency of 74.60 cm2/C compared to that of pure WO3 (47 cm2/C) thin films. Colorimetric analysis shows that the curve on the chromaticity diagram follows a linear trajectory on the application of varying reduction potential.

AB - In this paper we report novel bilayered WO3-PEDOT:PSS films synthesized for electrochromic device (ECD) applications. The films show synergetic properties of both WO3 and PEDOT:PSS. Absorbance spectra reveals the dominance of the optical properties of PEDOT:PSS over WO3 and the formation of polaron/bipolaron bands with change in potential. The fractal concept has been used to calculate the fractal dimensions of the reaction sites. The WO3-PEDOT:PSS thin films exhibit excellent cathodic electrochromism with transmittance modulation of 63%, response times of 5.71/5.59 s in their color/bleach state and enhanced electrochromic coloration efficiency of 74.60 cm2/C compared to that of pure WO3 (47 cm2/C) thin films. Colorimetric analysis shows that the curve on the chromaticity diagram follows a linear trajectory on the application of varying reduction potential.

KW - Colorimetric analysis

KW - PEDOT:PSS films

KW - R.F. magnetron sputtering

KW - WO -PEDOT:PSS films

KW - WO films

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JO - Nanoscience and Nanotechnology Letters

JF - Nanoscience and Nanotechnology Letters

IS - 12

ER -

Study of novel WO₃-PEDOT:PSS bilayered thin film for electrochromic applications

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Keywords

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