COLL 180 |
| Kei Murakoshi, Ken-ichi Okazaki, and Yoshihiro Nakato. Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan |
| Information on the energy levels of highly dispersed single-wall carbon nanotubes on solid surface under electrochemical potential control was obtained using in-situ microscopic Raman scattering spectroscopy. Scattering intensity depends on excitation wavelength, dispersion of the tubes, and the choice of the substrates. Relatively intense scattering was observed when roughed gold or silver metal electrodes were used as substrates. Near-infrared excitation at 785 nm also resulted in strong enhancements of the scattering. Characterization about highly dispersed single-wall nanotube on electrode was carried out via observation of specific Raman mode under the control of electrochemical potential. It was found that scattering intensity of individual single-wall carbon nanotube was controlled by the electrode potential. The potential dependence was explained by the change in the electronic density of the nanotube. |
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Adsorption of Macromolecules at Liquid-Solid Interfaces
Division of Colloid and Surface Chemistry |