Exciton binding energy and nonhydrogenic Rydberg series in monolayer WS(2).

@article{Chernikov2014ExcitonBE,
  title={Exciton binding energy and nonhydrogenic Rydberg series in monolayer WS(2).},
  author={A. Chernikov and Timothy C. Berkelbach and H. M. Hill and A. Rigosi and Yilei Li and O. Aslan and D. Reichman and M. Hybertsen and T. Heinz},
  journal={Physical review letters},
  year={2014},
  volume={113 7},
  pages={
          076802
        }
}
We have experimentally determined the energies of the ground and first four excited excitonic states of the fundamental optical transition in monolayer WS_{2}, a model system for the growing class of atomically thin two-dimensional semiconductor crystals. From the spectra, we establish a large exciton binding energy of 0.32 eV and a pronounced deviation from the usual hydrogenic Rydberg series of energy levels of the excitonic states. We explain both of these results using a microscopic theory… Expand
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References

SHOWING 1-10 OF 37 REFERENCES
Quantum Theory of the Optical and Electronic Properties of Semiconductors
This revised second edition on the "Quantum Theory of the Optical and Electronic Properties of Semiconductors" presents the basic elements needed to understand and engage in research in semiconductorExpand
ACS Nano 7
  • 791
  • 2013
C 9
  • 2459
  • 1976
Nuovo Cimento B 68
  • 217
  • 1970
Semiconductor Optics
Phys
  • Rev. B 89, 205436
  • 2014
Nano Lett
  • 13, 3447
  • 2013
Nanoscale 5
  • 9677
  • 2013
Nat
  • Nanotechnol. 8, 634
  • 2013
Nat
  • Commun. 4, 1474
  • 2013
...
1
2
3
4
...