Towards a Transparent, Highly Conductive Poly(3,4‐ethylenedioxythiophene)

摘要: A detailed investigation of the processing parameters influencing oxidative polymerization 3,4-ethylenedioxythiophene (EDOT) and a methanol-substituted derivative (EDOT-CH2OH) was performed with goal maximizing conductivity polymer. We show that can be significantly enhanced by varying monomer, oxidant (iron(III) p-toluenesulfonate (Fe(OTs)3)), weak base (imidazole (Im)), solvent (various alcohols), solution concentrations. The effect each variable on final materials properties is investigated, have been optimized to achieve conductivities as high 900 S cm−1. Surface resistance below 150 Ω/□ for 80-90 nm thick films visible-spectrum transparency exceeding 80 % achieved. combination these makes highly suitable numerous device applications.