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Niklasson, G.A. and Granqvist, C.G. (2007) Electrochromics for Smart Windows: Thin Films of Tungsten Oxide and Nickel Oxide, and Devices Based on These. Journal of Materials Chemistry, 17, 127-156. http://dx.doi.org/10.1039/B612174H

has been cited by the following article:

  • TITLE: A Flexible Quasi-Solid-State Electrochromic Device with Polymeric Electrolyte and WO3/NiO Complementary System

    AUTHORS: Jen-Yuan Wang, Min-Chuan Wang, Der-Jun Jan

    KEYWORDS: Electrochromism, Nickel Oxide, Polymeric Electrolyte, Tungsten Oxide

    JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.3 No.7, July 1, 2015

    ABSTRACT: A flexible quasi-solid-state electrochromic device (ECD), assembled with a polymeric crystal composite electrolyte and tungsten oxide/nickel oxide (WO3/NiO) complementary system, is demonstrated in this study. The polymer composite, which is composed of a UV-cured ethoxylated trimethylolpropane triacrylate (ETPTA), propylene carbonate (PC) and ferrocene (Fc), is used as the electrolyte in the flexible quasi-solid-state ECD. The optimal composition ration of this composite is at the weight ratio of 15/85 for ETPTA/PC with 1 M LiClO4. For the cathodic electrochromic electrode, a flexible polyethylene terephthalate (PET) is used as the substrate, and indium-tin- oxide (ITO) and WO3 are deposited sequentially on the PET by sputtering. A NiO/ITO/PET electrode prepared by sputtering is used as the anodic coloring electrode. The thickness of ITO, WO3 and NiO film is 110, 70 and 60 nm, respectively. This flexible all-solid-state ECD fabricated with the polymeric crystal composite electrolyte shows an optical contrast of ca. 37.5% at 550 nm. The optical transmittance of the ECD at 550 nm can be reversibly modulated from 47.5% (bleached) to 10.0% (darkened), by applying potentials of 2.5 and 2.5 V, respectively.