Low Temperature Charge Transport Study in p-Toluenesulfonic Acid Doped Polyaniline

Abstract

Polyaniline doped with p-toluenesulfonic acid was synthesized with chemical oxidation method by varying synthesis parameters. We report the electrical conductivity study of polyaniline doped with p-toluenesulfonic acid in the temperature range of 10 K to 300 K. The conductivity of the samples has been observed to show an increasing trend with increase in temperature. The Arrhenius model, variable range hopping (VRH), and Kivelson model were used to investigate the charge transfer in polyaniline. It has been shown that no one mechanism can completely describe the charge transport in polyaniline over entire temperature range 10 K- 300 K.