| 초록 |
Three types of oxidants, ferric benzenesulfonate (Fe(Bzs)3), ferric para-methylbenzenesulfonate (Fe(p-MeBzs)3), and ferric para-ethylbenzenesulfonate (Fe(p-EtBzs)3) were synthesized. Thermoelectric composites were prepared from these synthesized oxidants doped into a PEDOT matrix, which contained conductive graphene filler at various concentrations. The PEDOT-Bzs revealed the highest electrical conductivity among the PEDOT materials, exhibiting higher doping level of the polymer main chain than the PEDOT-p-MeBzs and PEDOT-p-EtBzs. The maximum figure of merit (ZT) of the PEDOT-Bzs composites was estimated at 0.015 with 75 wt.% graphene filler content. We thus enhanced the thermoelectric performance and further increasing the graphene content appears to be promising method. |
