Dresden 2009 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 38: Nanostructured Materials II

MM 38.1: Vortrag

Donnerstag, 26. März 2009, 10:15–10:30, IFW B

Electrical and mass transport in filled multi-wall carbon nanotubes — •Markus Löffler, Uhland Weißker, Thomas Mühl, Thomas Gemming, Rüdiger Klingeler, and Bernd Büchner — IFW Dresden, (P.O. box 270116, 01171 Dresden,) Germany

Electrical and concomitant mass transport in multi-wall carbon nano-tubes (MWCNT) has been studied in a transmission electron microscope using the tip of an in-situ scanning tunnelling microscope. The mass transport has been found to be driven by electromigration and it has been studied in different regimes. Especially, fully reversible mass transport inside a MWCNT as well as current-induced directed MWCNT growth has been observed. The knowledge of the measured electromechanical properties of filled carbon nanotubes presents a starting point for the understanding of growth dynamics as well as for future applications in nanoelectromechanical systems (NEMS).