Optical manipulation of the exciton charge state in single layer tungsten disulfide

A. A. Mitioglu; P. Plochocka; J. N. Jadczak; W. Escoffier; G. L. J. A. Rikken; L. Kulyuk; D. K. Maude

doi:10.1103/PhysRevB.88.245403

Optical manipulation of the exciton charge state in single layer tungsten disulfide

Mesoscale and Nanoscale Physics 2013-12-05 v1

Authors: A. A. Mitioglu , P. Plochocka , J. N. Jadczak , W. Escoffier , G. L. J. A. Rikken , L. Kulyuk , D. K. Maude

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Abstract

Raman scattering and photoluminescence (PL) emission are used to investigate a single layer of tungsten disulfide (WS $_{2}$ ) obtained by exfoliating n-type bulk crystals. Direct gap emission with both neutral and charged exciton recombination is observed in the low temperature PL spectra. The ratio between the trion and exciton emission can be tuned simply by varying the excitation power. Moreover, the intensity of the trion emission can be independently tuned using additional sub band gap laser excitation.

Keywords

tungsten disulfide exciton charge state optical manipulation photoluminescence trion Raman scattering single layer

Cite

@article{arxiv.1312.1051,
  title  = {Optical manipulation of the exciton charge state in single layer tungsten disulfide},
  author = {A. A. Mitioglu and P. Plochocka and J. N. Jadczak and W. Escoffier and G. L. J. A. Rikken and L. Kulyuk and D. K. Maude},
  journal= {arXiv preprint arXiv:1312.1051},
  year   = {2013}
}

Optical manipulation of the exciton charge state in single layer tungsten disulfide

Abstract

Keywords

Cite

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