| Abstract
| - A new silole-containing monomer, 1,1-dihexyl-3,4-diphenyl-2,5-bis{2-(3,4-ethylenedioxy)thienyl}silole, was synthesized and electropolymerized at a quite low potential (Eox,m = 0.29 V vs Fc/Fc+) to yield an electroactive polymer. Spectroelectrochemical and colorimetric analysis has shown that the polymer switches between blue and transmissive yellow-green upon doping. The low-lying LUMO levels of the siloles, combined with the electron-rich character of the 3,4-ethylene dioxythiophene units, confer upon this new polymer a narrow band gap of 1.3−1.4 eV.
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