Potential dependent surface Raman spectroscopy of single wall carbon nanotube films on platinum electrodes

The analysis of the resonance Raman spectra of single-walled carbon nanotubes in an electrochemically controlled aqueous H 2SO 4 environment using different laser excitation energies shows major reversible and irreversible differences in the main vibrational features regarding their intensities, lin...

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Bibliographic Details
Published in:Chemical physics letters 2003-03, Vol.370 (5), p.675-682
Main Authors: Corio, P., Santos, P.S., Brar, V.W., Samsonidze, Ge.G., Chou, S.G., Dresselhaus, M.S.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Fullerenes and related materials
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
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Summary:The analysis of the resonance Raman spectra of single-walled carbon nanotubes in an electrochemically controlled aqueous H 2SO 4 environment using different laser excitation energies shows major reversible and irreversible differences in the main vibrational features regarding their intensities, lineshapes, and frequencies for different applied potentials. These differences arise from the electrochemically induced changes in the occupation of electronic states for metallic and semiconducting nanotubes.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(03)00157-X