Synthesis and electrochromic performances of donor-acceptor-type polymers from chalcogenodiazolo [3,4-c]pyridine and alkyl ProDOTs

A series of donor-acceptor-type electrochromic polymers containing thiadiazolo [3,4-c]pyridine (PT)/selenadiazolospyridine (PSe) as acceptor units and alkyl ProDOTs as donor moieties have been synthesized and investigated. PProDOT (Me)2-PT displayed higher CE value (∼370 cm2 C−1), superior optical contrast (∼38%) in the near-infrared region and reversible color changes from green at neutral state to blue at oxidation state with good stability.264