Dresden 2006 – scientific programme

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O: Oberflächenphysik

O 14: Poster session I (Adsorption, Epitaxy and growth, Phase transitions, Surface reactions, Organic films, Electronic structure, Methods) (sponsored by Omicron Nanotechnology GmbH)

O 14.67: Poster

Monday, March 27, 2006, 18:00–21:00, P2

Electronic structure of pentacene crystals — •Jaroslaw Iwicki, Bridget Murphy, Meike Quitzau, Kai Rossnagel, and Lutz Kipp — Institut für Experimentelle und Angewandte Physik, Universität Kiel, D–24098, Germany

Organic semiconductors, such as pentacene, are promising candidates for several applications, including electronic devices. In order to develop an understanding for the transport mechanism and conduction properties in pentacene, it is necessary to know the band structure of the material. The pentacene crystals were prepared by physical vapor growth according to Ref.[1]. An angle-resolved photoemission spectroscopy (ARPES) investigation of the electronic structure of pentacene crystals was carried out using the ASPHERE spectrometer at beamline W3.2 at HASYLAB. ARPES data will be presented and discussed.

[1] R.A Laudise, Ch. Kloc, P.G. Simpkins, T. Siegrist, J. Cryst. Growth 187, 449 (1998).

Work supported by the DFG Forschergruppe FOR 353.