Excitonic effects in the optical spectra of graphene nanoribbons.

@article{Yang2007ExcitonicEI,
  title={Excitonic effects in the optical spectra of graphene nanoribbons.},
  author={Li Yang and M. Cohen and S. Louie},
  journal={Nano letters},
  year={2007},
  volume={7 10},
  pages={
          3112-5
        }
}
  • Li Yang, M. Cohen, S. Louie
  • Published 2007
  • Chemistry, Materials Science, Physics, Medicine
  • Nano letters
  • We present a first-principles calculation of the optical properties of armchair-edged graphene nanoribbons (AGNRs) with many-electron effects included. The reduced dimensionality of the AGNRs gives rise to an enhanced electron-hole binding energy for both bright and dark exciton states (0.8-1.4 eV for GNRs with width approximately 1.2 nm) and dramatically changes the optical spectra owing to a near complete transfer of oscillator strength to the exciton states from the continuum transitions… CONTINUE READING

    Figures and Topics from this paper.

    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 43 REFERENCES
    Graphene nano-ribbon electronics
    • 1,213
    • PDF
    Nature
    • 53,104
    • PDF
    Phys
    • 2000
    Phys
    • 1984
      • 2004
          Appl. Phys. Lett
          • 2005
          J. Phys. Chem. B
          • 2004