Microscopic Understanding of the Anisotropic Conductivity of PEDOT:PSS Thin Films


  • A.M.N. would like to thank the Alßan Program (the European Union Programme of High Level Scholarships for Latin America, ID#E03D19439BR) and the Eindhoven University of Technology (TU/e) for their financial support.


original image

The anisotropic conductivity of thin films of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is correlated to the film morphology as obtained from scanning tunneling and atomic force microscopy images. The material was found to consist of layers of flattened PEDOT-rich particles that are separated by quasi-continuous PSS lamella (see figure).