title: Scaling of excitons in carbon nanotubes.
abstract: 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.
authors.affiliation: IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.
authors.forename: Vasili
authors.initials: V
authors.lastname: Perebeinos
authors.forename: J
authors.initials: J
authors.lastname: Tersoff
authors.forename: Phaedon
authors.initials: P
authors.lastname: Avouris