ELECTROCHROMIC VIOLOGEN DERIVATIVES AND ELECTROCHROMIC DEVICE WITH CORRESPONDING ELECTRODE MATERIALS LEUCO-DYE

摘要

An electrochromic element is provided to lower driving voltage, to control the intensity of color and to obtain various colors by adding an electrode material corresponding to a viologen compound. An electrochromic element comprises an electrochromic viologen compound; and an electron-donating colorless organic compound represented by the formula 8 and the formula 9, wherein R is a C1-C10 alkyl group, an alkoxy group, an aryl group, or an aralkyl group; and m is an integer of 0~5.