Georgia Tech Research Corporation

Dylan Thomas Christiansen

John Robert Reynolds

Anna M Osterholm

Kangli Cao

Dwanleen E Shen

A variety of anodically-coloring electrochromic molecules are provided. In particular, anodically-coloring electrochromic molecules and devices are provided that allow for tuning the absorption bands in the cation state across the visible spectrum while demonstrating little to no coloring or visible absorption in the neutral state, resulting in high-contrast devices. Electrochromic devices are also provided, as well as methods of making the devices and molecules, and methods of use thereof.

Anodically coloring electrochromic molecules, materials, and devices, and methods of making and use thereof

Embodiments of the invention are directed to yellow/orange-to-transmissive conjugated polymers, a method to prepare the yellow/orange conjugated polymers, and an electrochromic and/or electroluminescent device comprising the neutral state yellow/orange conjugated polymers as one of a plurality of primary subtractive colored conjugated polymers. The yellow/orange conjugated polymers show enhanced redox stability and can have a (DAr)structure with a dioxyheterocycle repeating unit or a (DAr)structure with a dioxythiophene monomer that has at least one substituted carbon &#x3b1; to an oxygen of the monomer; and where the one to three Ar groups have at least one carbon &#x3b1; to the carbon attached to a D unit substituted that has at least 5 atoms in the substituent. The yellow/orange conjugated polymers show enhanced redox stability. The yellow/orange conjugated polymers are prepared by cross-condensation reactions.

Growing community of inventors

Atlanta, GA, United States of America

Dylan Thomas Christiansen