Charge transport in electroactive thin films investigated by ac electrogravimetry

摘要

The models of the charge transport in electroactive thin films published in the literature are surveyed. Both the ion/electrons 2-species models and the anion/cation/electron 3-species models are examined. The insertion laws of the ions and the transport of the species in the bulk film are take into account. The steady state and the dynamic behaviour ae derived. The latter is analysed in terms of electrochemical impedances and electrogravimetric (mass/potential) transfer function.