COLOR TUNING OF ELECTROCHROMIC DEVICES USING AN ORGANIC DYE

摘要

Disclosed is a method to color tune an electrochromic device by the use of a standard dye. By following the “subtractive color mixing” theory and selecting the appropriate standard dye to compliment or accentuate the electrochromic material, tuning of the optical and colorimetric properties of the resulting electrochromic device can be achieved. The method can also be used to prepare electrochromic devices that will switch between two neutral colors.

主权项

1. An electrochromic device, comprising:
an electrochromic material and a standard dye disposed between at least two electrodes, or an electrochromic material disposed between at least two electrodes and a standard dye external to the at least two electrodes, wherein the standard dye does not undergo redox (reduction or oxidation) processes within the potential window for operation of the electrochromic device, does not react with the electrochromic material, and optionally appropriately compliments or accentuates the electrochromic material in the bleached state, the colored state, or both.