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Verhandlungen
Verhandlungen
DPG

Regensburg 2010 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 9: Poster: Synthesis of Nanostructured Films by Self-organization, Thermoelectric Thin Films and Nanostructures, High-k and Low-k Dielectrics, Layer Deposition Processes, Layer Growth, Layer Properties, Application of Thin Films, Surface Modification, Hard and Superhard Coatings, Metal Layers

DS 9.21: Poster

Montag, 22. März 2010, 15:00–17:30, Poster D1

Surface Enhanced Raman Effect of Silver Nanoparticle Covered Substrates Prepared by Nanosphere Lithography — •Michael Ludemann1, Philipp Schäfer1, Christoph Brombacher2, Ovidiu Gordan1, Manfred Albrecht2, and Dietrich R. T. Zahn11Semiconductor Physics, Chemnitz University of Technology — 2Surface and Interface Physics, Chemnitz University of Technology

Weak Raman signals can be strongly enhanced using the so called surface enhanced Raman scattering (SERS) effect employing e.g. nano-structured metal surfaces. In order to get a deeper understanding of the enhancement mechanisms, silver nanoparticles of well defined shape and size prepared by nanosphere lithography were applied instead of randomly roughened silver films. The dependence of SERS spectra of copper phthalocyanine (CuPc) on the film thickness is discussed. For this purpose monitoring of the Raman signal during deposition of the organic film was performed in situ.

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