A low-density PEDOT:PSS/inorganic nanoparticle composite bulk material was prepared by carrying out spark plasma sintering (SPS) at 100 °C.
A pedot: PSS sample with 33 wt% Cu2SnSe3 nanoparticles showed the highest ZT of the samples tested, with a value of 0.04 at 45 °C and 20 times higher than the 0.002 value of a pristine PEDOT:PSS bulk sample.