Intrinsic Optical Transition Energies in Carbon Nanotubes

Details Intrinsic Optical Transition Energies in Carbon Nanotubes Intrinsic Optical Transition Energies in Carbon Nanotubes

2005-04-29

arxiv.org/abs/cond-mat/0505004v3

Physics

Condensed Matter

Materials Science

Due to a mistake, a different paper was submitted as "revised v2". This is a re-submission of the origional version in order t

Scientific paper

Intrinsic optical transition energies for isolated and individual single wall carbon nanotubes grown over trenches are measured using tunable resonant Raman scattering. Previously measured E22_S optical transitions from nanotubes in surfactants are blue shifted 70-90 meV with respect to our measurements of nanotubes in air. This large shift in the exciton energy is attributed to a larger change of the exciton binding energy than the band-gap renormalization as the surrounding dielectric constant increases.

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