Poly(thieno3,4-bthiophene) as a Low Band Gap Conducting Polymer and Electrochromic Material

摘要

Low band gap polymers have attracted attention due to their high transmissivity to visible light in the conductive form and the ease at which they can be both p-and n-doped.Poly(isothianaphthene),having a band gap ca.1 eV lower than poly(thiophene) was the first reported and most prevalent example of a low band gap conjugated polymer.This low band gap has been explained by the stabilization of the quinoidal form of the polymer imposed by the fused aromatic ring.