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Intrinsic Optical Transition Energies in Carbon Nanotubes

Yan Yin·Stephen Cronin·Andrew Walsh·Alexander Stolyarov·Michael Tinkham·Anthony Vamivakas·Wolfgang Bacsa·M. Selim Unlu·Bennett B Goldberg·Anna K. Swan
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Abstract

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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Yan Yin, Stephen Cronin, Andrew Walsh, Alexander Stolyarov, Michael Tinkham, Anthony Vamivakas, Wolfgang Bacsa, M. Selim Unlu, Bennett B Goldberg, Anna K. Swan. 2006-06-01. Intrinsic Optical Transition Energies in Carbon Nanotubes. https://arxiv.org/abs/cond-mat/0505004

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