AVS 49th International Symposium
    Nanotubes: Science and Applications Topical Conference Monday Sessions
       Session NT-MoM

Paper NT-MoM6
Preparation, Chemical and Physical Properties of Large Area Free-Standing Carbon Nanofilms

Monday, November 4, 2002, 10:00 am, Room C-209

Session: Nanotubes: Growth and Characterization
Presenter: M.M. Kappes, Universität Karlsruhe, Germany
Correspondent: Click to Email
Thin free standing films of single-walled carbon nanotubes (SWNT) were prepared by a novel ultrafiltration process. 1 cm x 1 cm films of less than 200 nm thickness can be routinely prepared for a variety of SWNT materials ranging from as-prepared to chemical derivatized (via amide coupling). Such films are particularly useful for transmission spectroscopic probes. We present results on gas-adsorption leading to changes in electronic structure. Furthermore we have investigated changes to optical properties associated with thermally induced deintercalation of SWNT bundles. Such processes may also be induced via visible laser irradiation thus allowing for spatial resolution.