Light emission from carbon nanotubes is expected to be dominated by excitonic recombination. Here we calculate the properties of excitons in nanotubes embedded in a dielectric, for a wide range of tube radii and dielectric environments. We find that simple scaling relationships give a good description of the binding energy, exciton size, and oscillator strength.
@article{arxiv.cond-mat/0402091,
title = {Scaling of excitons in carbon nanotubes},
author = {Vasili Perebeinos and J. Tersoff and Phaedon Avouris},
journal= {arXiv preprint arXiv:cond-mat/0402091},
year = {2009}
}
Comments
4 pages, 3 figures, accepted for publication in Phys. Rev. Lett