Dresden 2009 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 16: Poster I

DS 16.17: Poster

Dienstag, 24. März 2009, 09:30–12:30, P5

Energy levels of new perfluoroalkyl- substituted phthalocyanines derived from electrochemical characteristics — •Steffi Nagel1, Martin Lener1, Christopher Keil1, Robert Gerdes2, Sergiu Gorun2, and Derck Schlettwein11Justus-Liebig-Universität Gießen, Institut für Angewandte Physik, Heinrich-Buff-Ring 16, D-35392, Gießen. eMail: schlettwein@uni-giessen.de — 2New Jersey Institute of Technology, Department of Chemistry and Environmental Science, Newark, NJ 07102, USA

Octa(perfluoropropyl) octafluoro phthalocyanine complexes (F64Pc), new molecules with high electron affinity and small intermolecular coupling energies, were investigated. Studies of charge transfer across the interface under varied controlled potential in the electrolyte (cyclic voltammetry) were used to determine the molecular energy levels of the molecules. Optical spectroscopy was used to analyze details of the charged molecular state. Furthermore, optical absorbance measurements at thin films revealed a small extent of intermolecular electronic coupling. The use as n-conducting air stable semiconductors and electrochromic switches will be discussed.

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