“…Poly(3,4‐ethylenedithiathiophene) (PEDTT), as one of the most studied PEDOT analogues, has unique electrical and optical properties and potential applications in the fabrication of rechargeable batteries, sensors, photovoltaic devices, electrochromic devices, polymer‐fullerene devices, and so on 3, 4–23. In the past 20 years, the electrochemical homopolymerization of compounds containing 3,4‐ethylenedithiathiophene (EDTT) units, as listed in Scheme , has been studied in detail 6, 9–11, 16, 18, 20, 22.…”