Among organic thermoelectric materials, PEDOT:PSS (poly(3,4-ethylenedioxythiophene-poly(4-styrenesulfonate)) thin films have received extensive attention but suffer from low Seebeck coefficients of 10–20 μV K-1 due to the high oxidation states in the PEDOT polymer chain. Considerable effort has been devoted to increasing the Seebeck coefficient.
