Thermoelectric Properties of ex-situ PTH/PEDOT Composites

A thermoelectric material can convert temperature difference into electrical potential difference. Today, intensive researches are being carried out in order to use flexible, non-toxic and inexpensive conductive polymers instead of hard, hard-to-shape, expensive toxic semiconductor metals used as materials. Among the investigated for this purpose, poly(3,4-ethylenedioxythiophene) (PEDOT) is most promising. However, its properties alone not sufficient. Thermoelectric be increased by incorporating nanoparticles inorganic, organic or polymeric structures polymers. In study firstly, PTh was synthesized with without magnetic field oxidative polymerization aqueous media presence poly(sulfonic acid diphenyl aniline). Secondly, PEDOT polymerization. Then, ex-situ PTH/PEDOT composites were obtained different ratios PTh/PEDOT. Particle sizes measured their FTIR UV-vis. spectra taken. Seebeck coefficient conductivity from thin films Power factor values calculated. It found that coefficients field. The highest power PEDOTs 1683.3 µV/K 98.2 µW/mK2, respectively. PTh/PEDOT (PTh/PEDOT3)m 400 0.1