Conduction Models for CPs

Abstract

One of the first things to take serious note of when attempting a correlation of experimental aspects of conduction in CPs to conduction models is that to obtain a complete picture of conduction behavior, it does not suffice to merely measure DC conductivities. Rather, one must characterize the entire gamut of conduction behavior, i.e.:

• Conductivity as a function of temperature (including, e.g., temperatures from 500 K through ~ 0 K)

• Frequency (e.g. from DC through microwave frequencies)

• Magnetic field (whence the Hall effect, magnetoresistance and Corbino resistance), thermal gradient (whence thermopower), and

• CP processing and composition (whence conduction anisotropy, molecular weight and dopant effects)