CONTROLLED DIFFUSION COEFFICIENT ELECTROCHROMIC MATERIAL FOR USE IN ELECTROCHROMIC MEDIUM AND ASSOCIATED ELECTROCHROMIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electrochromic medium containing one or more controlled diffusion coefficient anodic electrochromic materials and/or cathodic electrochromic materials. SOLUTION: The electrochromic medium (124) for use in an electrochromic device (100) comprises: at least one solvent; and an anodic electroactive material; a cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein at least one of the anodic and cathodic electroactive materials is associated with a diffusion coefficient controlling moiety which serves to lower the diffusion coefficient of the associated material relative to the same without the diffusion coefficient controlling moiety. COPYRIGHT: (C)2009,JPO&INPIT