Excitons in carbon nanotubes: Diameter and chirality trends
- 12 November 2007
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 244 (11), 4016-4020
- https://doi.org/10.1002/pssb.200776200
Abstract
We provide a closer look into the diameter and chirality dependences of exciton properties in carbon nanotubes, using a variational methodology based on the effective mass and envelope function approximations, supported by ab initio parameters. Experimental measurements of the binding energy are reproduced within 0.02 eV for a large variety of tubes. We also report on the singlet‐triplet energy splittings, which show a 1/d2 diameter dependence.Keywords
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