Model of the electrochemical conversion of an undoped organic semiconductor film to a doped conductor film.
2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 81, no 8, 081203(R)- p.Article in journal (Refereed) Published
We develop a model describing the electrochemical conversion of an organic semiconductor (specifically, the active material in a light-emitting electrochemical cell) from the undoped nonconducting state to the doped conducting state. The model, an extended Nernst-Planck-Poisson model, takes into account both strongly concentration-dependent mobility and diffusion for the electronic charge carriers and the Nernst equation in the doped conducting regions. The standard Nernst-Planck-Poisson model is shown to fail in its description of the properties of the doping front. Solving our extended model numerically, we demonstrate that doping front progression in light-emitting electrochemical cells can be accurately described.
Place, publisher, year, edition, pages
2010. Vol. 81, no 8, 081203(R)- p.
Theory of electronic transport, Scattering mechanisms, Polymers and organic materials in electrochemistry
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-32325DOI: 10.1103/PhysRevB.81.081203ISI: 000275053300008OAI: oai:DiVA.org:umu-32325DiVA: diva2:302688