Dresden 2011 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 42: Poster I: Progress in Micro- and Nanopatterning: Techniques and Applications (jointly with O); Spins in Organic Materials; Ion Interactions with Nano Scale Materials; Organic Electronics and Photovoltaics; Plasmonics and Nanophotonics (jointly with HL and O); High-k and Low-k Dielectrics (jointly with DF); Organic Thin Films; Nanoengineered Thin Films; Layer Deposition Processes; Layer Properties: Electrical, Optical, and Mechanical Properties; Thin Film Characterisation: Structure Analysis and Composition; Application of Thin Films

DS 42.51: Poster

Mittwoch, 16. März 2011, 15:00–17:30, P1

Vibrational Properties of Metal Phthalocyanine Thin Films — •Michael Ludemann¹, Iulia E. Brumboiu^{1, 2}, Ovidiu D. Gordan¹, Vasile Chiş², and Dietrich R. T. Zahn¹ — ¹Semiconductor Physics, Chemnitz University of Technology — ²Faculty of Physics, Babeş-Bolyai University, Cluj-Napoca

In this work experimental Raman spectra of several phthalocyanine (Pc) molecules with different central metal atoms (Cu, Co, Fe and Ni) are compared to DFT calculations. Besides symmetry aspects the calculated and measured relative shifts of the vibrational bands due to the different central metal atoms provide additional information utilized to assign the measured Raman modes.

All samples were prepared by organic molecular deposition (OMBD) in ultra-high vacuum conditions (UHV). The measurements are performed in situ during growth or stepwise at fixed film thicknesses. For a better comparison to single molecule calculations Raman spectra at ultra-low coverage were measured.