Regensburg 2010 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 14: Poster: Interfaces and Thin Films
CPP 14.9: Poster
Monday, March 22, 2010, 16:30–18:00, Poster C
Modification of the electrical conductivity in conjugated polymer films — •Andreas Nathan1, Matthias A. Ruderer1, Robert Meier1, Hyeokmin Choe1, Robert Cubitt2, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department LS E13, James-Franck-Str. 1, 85747 Garching, Germany — 2Institut Laue-Langevin, 6 rue Jules Horowitz, 38000 Grenoble, France
Conjugated polymers in thin films are of great interest for various applications such as organic photovoltaics, organic light emitting diodes and organic field effect transistors. Therefore, the selective modification and control of their electrical conductivity has special importance. Doping of conjugated polymers in particular allows for the adjusting of the conductivity. In polyacetylene the conductivity is increased over a remarkably large range from an insulating to a metallic behaviour.
In this work we prepare thin films of polyacethylene derivatives through solution based processes and test different doping methods. The film thickness is determined with x-ray reflectivity measurements. The electrical conductivity is measured with respect to film thickness and doping. UV/Vis measurements complete our investigations.