Improvement of color retention properties of Ag deposition-based electrochromic device by introducing anion exchange membrane

Description

Ag deposition-based multicolor electrochromic (EC) device we reported can switch various optical states among transparent, black, silver, cyan, magenta, and yellow by only using electrochemical deposition of Ag. However, the EC device had poor color retention property under open-circuit state because of dissolution of deposited Ag metal by Cu2+ ions, which is essential because it acts as redox material at counter electrode. Here, we introduced an anion exchange membrane to separate Cu2+ from the Ag deposit. The improved device achieved longer retention time of colored state. It is effective to maintain the coloring state without electric power for practical application.

Journal

  • MRS Communications

    MRS Communications 8 (2), 498-503, 2018-04-10

    Springer Science and Business Media LLC

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