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Proceedings Paper

Creation of functionalized nanostructures on alkyl terminated silicon by selective binding of dye molecules
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Paper Abstract

We report on the functionalization of silicon oxide nanostructures using luminescent dye molecules and the characterization of these systems by optical microscopy. The nanostructures are prepared by local anodic oxidation (LAO) of a dodecyl-terminated silicon substrate using an atomic force microscope (AFM). The silicon oxide nanostructures are negatively charged and the cationic dye rhodamine 6G could be successively bound to the structures by electrostatic interactions. A quenching of luminescence due to the interaction of the excited states with the silicon was found. The luminescence signal is attributed to monomeric Rh6G molecules with a slight blue shift of the emission due to the changed chemical environment.

Paper Details

Date Published: 28 May 2009
PDF: 8 pages
Proc. SPIE 7364, Nanotechnology IV, 73640A (28 May 2009); doi: 10.1117/12.821706
Show Author Affiliations
Thomas Baumgärtel, Chemnitz Univ. of Technology (Germany)
Harald Graaf, Chemnitz Univ. of Technology (Germany)
Christian von Borczyskowski, Chemnitz Univ. of Technology (Germany)

Published in SPIE Proceedings Vol. 7364:
Nanotechnology IV
Achim Wixforth, Editor(s)

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