Georgia Tech Research Corporation

Anna M Osterholm

John Robert Reynolds

Dylan Thomas Christiansen

Rayford H Bulloch

Dwanleen E Shen

James F Ponder, Jr

Kangli Cao

Jr Ponder James F

James F Ponder Jr

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.

High-gap yellow and orange electrochromic polymers

Conjugated copolymers are provided that can be processed in a variety of solvents and can be rendered solvent-resistant when needed. The copolymers can be solution cast from nonpolar, polar, and aqueous solvents. After casting a polymer layer, the polymer can be rendered solvent resistant, thereby providing for improved stability and multi-layer processing and in electrochromic devices where the polymer layer is in contact with a nonpolar or polar solvent or electrolyte. Methods of making the copolymers are also provided, as well as methods of solution casting the polymers from a variety of nonpolar organic, polar, and aqueous solvents. Electrochromic devices are demonstrated having electrode(s) containing these polymers, including a variety of supercapacitor devices capable of using organic, biological, and aqueous electrolytes. Some of these electrodes demonstrate superfast switching and large power densities, showing promise for applications in supercapacitor batteries.

Processable polymers and methods of making and using thereof

Growing community of inventors

Atlanta, GA, United States of America

Anna M Osterholm