Influence of thermal treatment on the conductivity and morphology of PEDOT/PSS films

The electrical properties of conducting polymers are strongly dependent on their film morphology and chemical and physical structure, which in turn can be strongly modified via a variety of post-deposition treatments. The aqueous dispersion of poly (3,4-ethylenedioxythiophene) with polyelectrolyte, poly(styrene sulfonic acid) (PEDOT/PSS) was used as the conducting polymer in our study. We report an investigation of the conductivity and morphology of spin-coated films and their dependence on heat treatment procedures in both air and N-2 atmospheres. (C) 2003 Elsevier Science B.V. All rights reserved.