Regensburg 2016 – scientific programme
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DS: Fachverband Dünne Schichten
DS 53: Postersession DS/HL
DS 53.16: Poster
Thursday, March 10, 2016, 16:00–19:00, Poster A
Si(553)-Au surface functionalized by small molecules — •Svetlana Suchkova1, Eugen Speiser1, Sandhya Chandola1, Conor Hogan2, Friedhelm Bechstedt3, and Norbert Esser1 — 1Leibnitz-Institut für Analytische Wissenschaften - ISAS - e.V., Department Berlin, Schwarzschildstr. 8-10, 12489 Berlin, Germany — 2Universita di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy — 3Friedrich-Schiller-University Jena, Institut für Festkörpertheorie und optik, Helmholtzweg 3, 07743 Jena
We discuss the adsorption of toluene-3,4-dithiol molecules on the Si(553)-Au surface. In contrast to the highly reactive clean Si surface, Au-passivated surfaces offer the potential for a more selective adsorption, eventually yielding molecular layers that are essentially self-ordered on the underlying silicon substrate. The calculations of Potential Energy Surface (PES) by Density Functional Theory (DFT) in combination with reflectance anisotropy spectroscopy (RAS) provide us with the information on molecular orientation on the surface.