Intrinsic optical transition energies in carbon nanotubes
Date
2005
DOI
Authors
Yin, Yan
Stolyarov, Alexander
Tinkham, Michael
Vamivakas, Anthony
Bacsa, Wolfgang
Cronin, Stephen J.
Walsh, Andrew
Unlu, M. Selim
Goldberg, Bennett
Swan, Anna
Version
OA Version
Citation
Yan Yin, Stephen Cronin, Andrew Walsh, Alexander Stolyarov, Michael Tinkham, Anthony Vamivakas, Wolfgang Bacsa, M Selim Unlu, Bennett B Goldberg, Anna K Swan. "Intrinsic Optical Transition Energies in Carbon Nanotubes."
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.