Dresden 2009 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 24: Organic Thin Films IV
DS 24.3: Vortrag
Mittwoch, 25. März 2009, 17:00–17:15, GER 38
Characterization of perfluoroalkyl- substituted phthalocyanine films, a new material for organic electronics — •Christopher Keil1, Martin Lener1, Steffi Nagel1, Robert Gerdes2, Sergiu Gorun2, and Derck Schlettwein1 — 1Justus-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) with different central metal groups (Cu, Zn, VO) were investigated as robust organic n-conducting semiconductor materials. Thin films were prepared by physical vapour deposition in high vacuum. The optical absorbance and electronic properties were measured in-situ during film growth in order to reveal the formation of conducting pathways, the mechanism of film growth as well as potential microscopic intermolecular electronic coupling. The molecular energy levels of the materials were studied by potential dependent measurements of the charge transfer to the molecules in solution or in thin films. Possible applications of these new molecules as n-conducting and air stable materials in organic electronic devices like field effect transistors, chemical sensors and organic photovoltaic cells are discussed.