Berlin 2008 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 23: Poster session

MM 23.32: Poster

Dienstag, 26. Februar 2008, 14:45–18:00, Poster B

Intershell conductance in multiwall carbon nanotubes — •Andreas Stetter, Christian Back, and Johann Vancea — Universität Regensburg, Institut für angewandte Physik

We have measured the current induced voltage drop along an individual mutiwall carbon nanotube (MWCNT) as a function of the distance to the current injecting electrode. For this purpose we used the scanning probe potentiometry combined with scanning electron microscopy.

For a MWCNT with an incomplete outer shell a sharp potential jump was observed at the end of the outer shell. The length dependence of the potential on the whole tube has been used to determine the intershell conductance of the MWCNT.