Dresden 2011 – scientific programme

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MO: Fachverband Molekülphysik

MO 7: Poster: Cluster

MO 7.10: Poster

Monday, March 14, 2011, 16:00–18:00, P1

Size dependent luminescence of silicon clusters in neon matrices — •Vicente Zamudio-Bayer^1,3, Stefan Minniberger², Alexandre Rydlo², Konstantin Hirsch^1,3, Thomas Möller³, Bernd von Issendorff⁴, Wolfgang Harbich², and Tobias Lau¹ — ¹Helmholtz-Zentrum Berlin für Materialien und Energie, Wilhelm-Conrad-Röntgen Campus / BESSY II, Institut für Methoden und Instrumentierung der Synchrotronstrahlung (G-I2), Albert-Einstein-Str. 15, D-12489 Berlin — ²Institut de Physique des Nanostructures, EPFL, CH-1015 Lausanne — ³Technische Universität Berlin, Institut für Optik und Atomare Physik, EW 3-1, Hardenbergstraße 36, D-10623 Berlin — ⁴Albert-Ludwigs-Universität Freiburg, Fakultät für Physik/FMF, Stefan-Meier-Straße 21, D-79104 Freiburg

The optical properties of silicon are of great interest because of future possible applications compatible with existing silicon based electronics technology. Especially its light emitting characteristics have been studied to great extent. A large portion of these studies deal with the luminescence in the visible range of small (d≥1 nm) silicon structures, which has been linked to quantum confinement and/or the presence of defects. In order to better understand the underlying effects, it would be interesting to investigate smaller structures down to the molecular limit. Therefore we have measured the luminescence of very small (n≤18) size selected, pristine silicon clusters embedded in a neon matrix. Experimental details and some first results are presented.