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O: Fachverband Oberflächenphysik

O 42: Poster Session II (Nanostructures at surfaces: arrays; Nanostructures at surfaces: Dots, particles, clusters; Nanostructures at surfaces: Other; Nanostructures at surfaces: Wires, tubes; Metal substrates: Adsorption of O and/or H; Metal substrates: Clean surfaces; Metal substrates: Adsorption of organic/bio moledules; Metal substrates: Solid-liquid interfaces; Metal substrates: Adsorption of inorganic molecules; Metal substrates: Epitaxy and growth; Heterogeneous catalysis; Surface chemical reactions; Ab-initio approaches to excitations in condensed matter; Organic, polymeric, biomolecular films– also with adsorbates; Particles and clusters)

O 42.115: Poster

Mittwoch, 25. März 2009, 17:45–20:30, P2

Infrared and Raman spectroscopy of ultrathin organic films in a liquid cell — •Nadja Becker¹, Dennis Aulich¹, Norbert Esser¹, Jörg Rappich², and Karsten Hinrichs¹ — ¹ISAS - Institute for Analytical Sciences, Department Berlin, Albert-Einstein-Str. 9, 12489 Berlin, Germany — ²Helmholtz Zentrum Berlin für Matrerialien und Energie GmbH, Abt. SE1, Kekuléstr. 5, 12489 Berlin, Germany

Thickness and structure of organic films is investigated by non-destructive, optical in-situ-methods. Besides molecular identification, Raman spectroscopy and infrared ellipsometry are shown to reveal complementary vibrational informations of thin films. The same in-situ cell [1] was used for characterisation of protein adsorption and the study of polymer films in contact with aqueous solutions.

Reference: [1] Y. Mikhaylova, L. Ionov, J. Rappich, M. Gensch, N. Esser, S. Minko, K.-J. Eichhorn, M. Stamm, K. Hinrichs, Anal. Chem. 79, 7676 (2007)