Abstract
The effects of solvent on electrical properties of polyaniline emeraldine base (PANIEB) are investigated as a function of temperatures. It is observed that PAN IEB follows Arrhenius type of conductivity, while Arrhenius pre-exponential factor and activation-energy are found interrelated according to the Meyer-Neldel rule (MNR). The effects of solvent on the activation energy and isokinetic temperature (derived from MNR) are further examined according to the generalized adiabatic polaron hopping mechanism. It is observed that the solvent provides higher Isokinetic temperature and lower activation energy due to the enhancement of solvent-induced crystallization, electronic energy transfer rate between molecular chains, and softening of molecular vibration in PANIEB thin film.