Exciton-phonon effects in carbon nanotube optical absorption

Details Exciton-phonon effects in carbon nanotube optical absorption Exciton-phonon effects in carbon nanotube optical absorption

2004-11-24

arxiv.org/abs/cond-mat/0411618v1

Phys. Rev. Lett. 94, 027402 (2005)

Physics

Condensed Matter

Materials Science

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.94.027402

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.

Affiliated with

Also associated with

No associations

Rating

Exciton-phonon effects in carbon nanotube optical absorption does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Exciton-phonon effects in carbon nanotube optical absorption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exciton-phonon effects in carbon nanotube optical absorption will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-414594