Berlin 2008 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
DS: Fachverband Dünne Schichten
DS 18: Poster: Towards Molecular Spintronics, Organic Thin Films, Optical Layers, Vibrational Spectroscopy, Tayloring organic interfaces
DS 18.5: Poster
Dienstag, 26. Februar 2008, 14:30–19:30, Poster A
On the electronic structure of cobalt phthalocyanine — •Thomas Kroll1, Victor Yu. Aristov1,2, Olga V. Molodsova1, Victor M. Zhilin2, Denis V. Vyalikh3, Bernd Büchner1, and Martin Knupfer1 — 1IFW Dresden, P.O. Box 270016, D-01171 Dresden, Germany — 2Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow distr., 142432, Russia — 3Institute of Solid State Physics, TU Dresden, D-01069 Dresden, Germany
Metal phthalocyanines (MPc) are molecular based systems that contain a transition metal ion in its centre. They have long been attractive materials for fundamental aspects as well as technological interest. Furthermore, metal phthalocyanine complexes have the potential to provide important information on general questions regarding metal-organic complexes. They may thus act as archetype model systems for the physical behaviour of a large number of other TM complexes.
In this presentation, we will concentrate on cobalt phthalocyanine (CoPc). In this material, the Co ion appears in a divalent state with formally 7 electrons in the 3d shell. We will show results of spectroscopic measurements such as X-ray absorption spectroscopy at the Co L-edge, together with a theoretical description of the data. This approach has already proved to work successfully for transition metal oxides. Our results will clarify important aspects of the electronic structure of CoPc and shed further light on general questions regarding metal-organic complexes.