A new transparent type electrochromic device (ECD) has been developed.It consists of two electrochromic thin films facing each other, one of “prussian blue” (PB) and the other of tungsten trioxide (WO3). PB exhibits a high intensity of coloration and is blue in the oxidized state and transparent in the reduced state. By electrodeposition, the PB layer can be formed on large substrates at low cost.This ECD has been applied to large, curved automotive glass. It reversibly turns from dark blue to transparent at low operating voltage and maintains the same intensity of coloration without the aid of an external power supply. Compared with photochromic glass, it achieves a greater color change in a shorter time and its light absorption can be changed at will. It shields passengers from the discomfort of glare and heat flow through glass.


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    Title :

    A New Electrochromic Device for Automotive Glass - The Development of Adjustable Transparency Glass


    Additional title:

    Sae Technical Papers


    Contributors:
    Kawai, Mikio (author) / Ura, Mikio (author) / Kase, Takao (author)

    Conference:

    Passenger Car Meeting & Exposition ; 1986



    Publication date :

    1986-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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