Berlin 2001 – wissenschaftliches Programm

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MO: Molekülphysik

MO 1: Posters Monday: Clusters, Fullerenes and Nanotubes

MO 1.26: Poster

Montag, 2. April 2001, 12:30–15:00, AT3

Purification and derivatisation of carbon nanotubes — •Sveningsson Martin¹, Frank Rohmund¹, Andrej Gromov¹, Raluca Morjan¹, Yoshinori Sato², and Eleanor E.B. Campbell¹ — ¹School of Physics and Engineering Physics, Göteborg University and Chalmers University of Technology, SE-412 96 Göteborg, Sweden — ²Department of Geosciences and Technology, Tohoku University, Sendai, 980-77, Japan

Chemical vapour deposition (CVD) grown carbon nanotubes were etched chemically, providing short multi-walled nanotubes capsules, which are mostly open-ended. Carbon shell encapsulated metal nanoparticles were obtained by purification of single-walled nanotub material. Further derivatisation on the carbon nanotubes was achieved by using the reactivity of the carboxylic acid groups in order to attach the nanotubes to amino-terminated latex beads. The latex beads can then be trapped in an optical tweezer, which gives the possibility to move them and the attached nanotubes in a controlled way.