APPLICATION OF ELECTROCHEMICAL QUARTZ MICROBALANCE TO DETERMINE THE STOICHIOMETRY OF ION MOVEMENT DURING DOPING-UNDOPING PROCESSES IN POLYPYRROLE

The high sensitivity of a quartz crystal microbalance in probing electrochemical surface processes is used to investigate the diffusion of ions from solution into films of conducting polymers. This diffusion processes are assumed to be necessary to maintain electroneutrality when switching the film from its neutral to its charged form and vice versa.