Georgia Tech Research Corporation

Kangli Cao

John Robert Reynolds

Anna M Osterholm

Dylan Thomas Christiansen

Dwanleen E Shen

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.

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Kangli Cao