A novel approach to improve polyaniline (PANI) electrical properties while retaining good processability was demonstrated. It has been investigated that a suitable design of the dopant counterion can improve charge transport in the amorphous phase of the polymer, thus allowing to obtain a material with good conductivity without the requirement of a high degree of crystallinity. The conductivity of PANI is enhanced by the formation of a crosslinked three-dimensional network between the polymer chains and dopant molecules. The interaction of PANI with semiconductor nanoparticles such as CdS, Cu 2S, and TiO2 has reported that the PANI chains remain in a separated phase from the inorganic compounds which do not modify the charge transport inside the polymer. The dopant promotes the formation of a cross-linked network with the PANI chains and its semiconducting nature assists the interchain charge transport.