Berlin 2008 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 23: Poster session

MM 23.40: Poster

Tuesday, February 26, 2008, 14:45–18:00, Poster B

Tailoring carbon nanotubes through predefined catalyst particles — •Christoph Schünemann, Franziska Schäffel, Mark H. Rümmeli, Christian Kramberger, Thomas Pichler, Bernd Rellinghaus, and Ludwig Schultz — IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany

Owing to their excellent mechanical and electronic properties, carbon nanotubes (CNTs) are promising candidates for the integration into nanoelectromechanical systems such as nanorelays and actuators or transistors. Effective control of the CNT growth, orientation and positioning is still considered a mayor challenge within the scientific community.

In order to reach this goal, we use nanoparticles which are prepared via inert gas condensation as predefined catalysts to grow CNTs in thermal CVD and plasma enhanced CVD. Besides utilizing commonly used transition metal catalysts such as Fe, Ni and Co, we demonstrate the CNT growth from binary alloy catalyst particles, e.g. FePt.