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Issue 24, 2017
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Fabrication of MoS2/WO3 nanocomposite films for enhanced electro-chromic performance

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Abstract

A novel MoS2/WO3 nanocomposite (MSW) based electrochromic device (ECD) has been fabricated by a facile cost effective sol–gel spin-coating approach. MoS2 is hybridized with WO3 nanoparticles via an in situ hydrothermal method. The fabrication of the ECD film using a low temperature solution-process is in high demand for flexible applications. The fabricated MSW films exhibited enhanced transmittance variation (ΔT ∼ 75–60%), good colouration efficiency (51.2–39.4 cm2 C−1) and fast switching times compared to pure WO3 films at 700 nm with an applied potential of 0 V to −1.5 V. It is expected that the good electrical conductivity, high specific surface area and unique graphene-like sheet structure of the MoS2 layer will allow facile and effective insertion of Li+ ions at the interface between the film and the electrolyte, hence promoting a higher electron transfer rate, which is crucial for increasing the electrochromic properties of WO3 films. It is expected that the MSW composite film could be a promising material for practical EC applications. In addition, the application of MoS2 may create a new pathway for inorganic hybrid materials as possibly suitable graphene alternatives in EC devices and potential candidates for a flexible transparent conductive electrode (TCE) as well.

Graphical abstract: Fabrication of MoS2/WO3 nanocomposite films for enhanced electro-chromic performance

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Publication details

The article was received on 14 Aug 2017, accepted on 09 Nov 2017 and first published on 10 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03011H
Citation: New J. Chem., 2017,41, 15327-15333
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    Fabrication of MoS2/WO3 nanocomposite films for enhanced electro-chromic performance

    Md. Rakibuddin and H. Kim, New J. Chem., 2017, 41, 15327
    DOI: 10.1039/C7NJ03011H

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