A One-Step, Organic-Solvent Processable Synthesis of PEDOT Thin Films via in Situ Metastable Chemical Polymerization
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Abstract
A straightforward approach to the synthesis of electrically conducting PEDOT thin films using metastable and organic-solvent processable mixtures that rapidly polymerize upon solvent evaporation is presented. This one-step synthetic procedure, previously used to prepare well behaved polypyrrole and polythiophene films, has now been extended to one of the most academically/industrially studied and commercially successful polythiophene-based polymers, PEDOT. The methodology can be used to synthesize smooth, uniform, homogeneous, crack and pinhole free, conducting (0.02−0.47 S/cm), and highly transmissive PEDOT films with well-defined spectroelectrochemistry by spin-coating organic-solvent processable mixtures of EDOT monomer and phosphomolybdic acid oxidant onto conductive and nonconductive glass substrates.
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