Michael S. Arnold, Phaedon Avouris, et al.
Journal of Physical Chemistry B
We find that the optical properties of carbon nanotubes reflect remarkably strong effects of exciton-phonon coupling. Tight-binding calculations show that a significant fraction of the spectral weight of the absorption peak is transferred to a distinct exciton + phonon sideband, which is peaked at around 200 meV above the main absorption peak. This sideband provides a distinctive signature of the excitonic character of the optical transition. The exciton-phonon coupling is reflected in a dynamical structural distortion, which contributes a binding energy of up to 100 meV. The distortion is surprisingly long ranged, and is strongly dependent on chirality. © 2005 The American Physical Society.
Michael S. Arnold, Phaedon Avouris, et al.
Journal of Physical Chemistry B
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Physical Chemistry Chemical Physics
J. Tersoff
Physical Review B
Yu-Ming Lin, Keith A. Jenkins, et al.
IMS 2011