Seebeck coefficients of regioregular poly(3-hexylthiophene) correlated with doping levels

Abstract

Thermoelectric properties of regioregular poly(3-hexylthiophene) (P3HT) were investigated in correlation with doping level measured by a potential-step chronocoulometry (PSC) method. It was found that the log–log plot of Seebeck coefficients against doping levels showed a good linearity, whose slope value was around −1.