Learning Effect in the Doping Process of Conducting Polymer

The doping process of poly(3-alkylthiophene) has been activated by repeating the doping-undoping process as a learning effect in neural networks. The diffusion coefficient of a chemically prepared poly(3-alkylthiophene) film increases markedly with doping-undoping cycles. These effects are discussed in terms of the change in morphology of polymer films.