Reduced graphene oxide layered WO3 thin film with enhanced electrochromic properties

Ayesha Khan; N. Y. Bhosale; S. S. Mali; C. K. Hong; Anamika V. Kadam

doi:10.1016/j.jcis.2020.03.029

Reduced graphene oxide layered WO₃ thin film with enhanced electrochromic properties

Ayesha Khan, N. Y. Bhosale, S. S. Mali, C. K. Hong, Anamika V. Kadam^*

^*Corresponding author for this work

Pure And Applied Chemistry

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

48 Citations (Scopus)

Abstract

The electrochromic (EC) properties of inorganic-organic hybrids of tungsten oxide/reduced graphene oxide (WO₃/rGO) thin films were examined. Using hydrothermal method WO₃ nanorods were deposited on a conducting Indium-doped tin oxide (ITO) glass substrate. In succession, the reduced graphene oxide thin film was coated on WO₃ thin film using improved Hummers method. The structural, morphological, optical, and electrochromic responses of WO₃, rGO, and WO₃/rGO films are illustrated. Compared with pure WO₃ film, WO₃/rGO composite film demonstrates improved EC performance because of enhanced double insertion/extraction of ions and electrons. It realizes a large optical modulation (58.8% at 633 nm) with a significant increase in Coloration Efficiency (CE) and EC stability.

Original language	English
Pages (from-to)	185-193
Number of pages	9
Journal	Journal of Colloid and Interface Science
Volume	571
Early online date	18 Mar 2020
DOIs	https://doi.org/10.1016/j.jcis.2020.03.029
Publication status	Published - 1 Jul 2020

Funding

This work was financially supported by DST-SERB, New Delhi for young scientist fellowship with major sponsoring of the project through grant no. PS/030/2013. This research was partially supported by Shivaji University, Kolhapur (SU/C &U.D. Section/UGK/49/1032 dated 29/12/2018).

Keywords

efficiency
electrochromism
nanosheet
optical
reduced graphene oxide
Tungsten oxide

Access to Document

10.1016/j.jcis.2020.03.029

Cite this

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title = "Reduced graphene oxide layered WO3 thin film with enhanced electrochromic properties",

abstract = "The electrochromic (EC) properties of inorganic-organic hybrids of tungsten oxide/reduced graphene oxide (WO3/rGO) thin films were examined. Using hydrothermal method WO3 nanorods were deposited on a conducting Indium-doped tin oxide (ITO) glass substrate. In succession, the reduced graphene oxide thin film was coated on WO3 thin film using improved Hummers method. The structural, morphological, optical, and electrochromic responses of WO3, rGO, and WO3/rGO films are illustrated. Compared with pure WO3 film, WO3/rGO composite film demonstrates improved EC performance because of enhanced double insertion/extraction of ions and electrons. It realizes a large optical modulation (58.8% at 633 nm) with a significant increase in Coloration Efficiency (CE) and EC stability.",

keywords = "efficiency, electrochromism, nanosheet, optical, reduced graphene oxide, Tungsten oxide",

author = "Ayesha Khan and Bhosale, {N. Y.} and Mali, {S. S.} and Hong, {C. K.} and Kadam, {Anamika V.}",

year = "2020",

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doi = "10.1016/j.jcis.2020.03.029",

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T1 - Reduced graphene oxide layered WO3 thin film with enhanced electrochromic properties

AU - Khan, Ayesha

AU - Bhosale, N. Y.

AU - Mali, S. S.

AU - Hong, C. K.

AU - Kadam, Anamika V.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The electrochromic (EC) properties of inorganic-organic hybrids of tungsten oxide/reduced graphene oxide (WO3/rGO) thin films were examined. Using hydrothermal method WO3 nanorods were deposited on a conducting Indium-doped tin oxide (ITO) glass substrate. In succession, the reduced graphene oxide thin film was coated on WO3 thin film using improved Hummers method. The structural, morphological, optical, and electrochromic responses of WO3, rGO, and WO3/rGO films are illustrated. Compared with pure WO3 film, WO3/rGO composite film demonstrates improved EC performance because of enhanced double insertion/extraction of ions and electrons. It realizes a large optical modulation (58.8% at 633 nm) with a significant increase in Coloration Efficiency (CE) and EC stability.

AB - The electrochromic (EC) properties of inorganic-organic hybrids of tungsten oxide/reduced graphene oxide (WO3/rGO) thin films were examined. Using hydrothermal method WO3 nanorods were deposited on a conducting Indium-doped tin oxide (ITO) glass substrate. In succession, the reduced graphene oxide thin film was coated on WO3 thin film using improved Hummers method. The structural, morphological, optical, and electrochromic responses of WO3, rGO, and WO3/rGO films are illustrated. Compared with pure WO3 film, WO3/rGO composite film demonstrates improved EC performance because of enhanced double insertion/extraction of ions and electrons. It realizes a large optical modulation (58.8% at 633 nm) with a significant increase in Coloration Efficiency (CE) and EC stability.

KW - efficiency

KW - electrochromism

KW - nanosheet

KW - optical

KW - reduced graphene oxide

KW - Tungsten oxide

U2 - 10.1016/j.jcis.2020.03.029

DO - 10.1016/j.jcis.2020.03.029

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JO - Journal of Colloid and Interface Science

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