Berlin 2008 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 38: Nanostructured Materials V

MM 38.1: Vortrag

Donnerstag, 28. Februar 2008, 11:45–12:00, H 0111

Single crystalline metal nanowires with high aspect ratio — •Achim Walter Hassel and Srdjan Milenkovic — Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany

Directional solidification of eutectics with an asymmetric composition is a route to metallic nanowires. This coupled growth yields a single crystalline matrix with embedded single crystalline nanowires, all being aligned parallel to each other. Differential electrochemical processing allows a partial, local or entire release of the wires with an aspect ratio of over 1000. Various metals can be used such as the refractory metals Re, Mo and W or the noble metals Au and Cu. Both, diameter and length can be controlled by the processing parameters in a wide range. Prototypes for further investigations and applications will be shown.