Conductivity Measurements On Polypyrrole and Substituted Poly-Pyrroles

Abstract
The temperature dependence of the conductivity has been measured on a large variety of oxydized polypyrroles and substituted polypyrroles (PPy). In all the compounds, the conductivity follows the typical law σ α exp[-(T0/T)1/4]. The experimental results are analyzed in the framework of Mott's model. Although qualitatively good, this model does not provide a satisfactory quantitative description of conductivity in these materials.