Scaling of excitons in carbon nanotubes.
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.
Perebeinos
Vasili
V
IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.
Tersoff
J
J
Avouris
Phaedon
P