Dresden 2006 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 23: POSTER Functional Organic Thin Films

CPP 23.17: Poster

Thursday, March 30, 2006, 17:00–19:00, P2

Growth and Characterisation of Substituted Phthalocyanines for Applications in Organic Field Effect Transistors — •Harry Brinkmann, Christian Kelting, and Derck Schlettwein — Justus-Liebig-Universität Gießen, Institut für Angewandte Physik, Heinrich-Buff-Ring 16, D-35392 Gießen

Partially fluorinated phthalocyanines were examined aiming at their electric properties. According to the position of their electronic energy levels, located just intermediate between unsubstituted and perfluorinated phthalocyanines, interesting properties as molecular semiconductors can be expected. Thin films of these partially fluorinated phthalocyanines were deposited either on glass or polyimide, the latter serving as an insulator substrate to study possibilities in realization of an all organic field-effect-transistor. The organic layers were grown by PVD. Optical absorbance and electrical conduction were studied dependent on the film thickness, substrate and contact material. Applicability of such layers in technical devices will be discussed.