Advertisement

Technical Physics Letters

, Volume 43, Issue 12, pp 1112–1114 | Cite as

Optical Diagnostics of WSe2 Monolayers

  • K. A. Brekhov
  • K. A. Grishunin
  • N. A. Ilyin
  • A. P. Shestakova
  • S. D. Lavrov
  • E. D. Mishina
Article

Abstract

WSe2 films have been studied by the method of second harmonic generation (SHG) in the 1200–1420 nm wavelength range at room temperature. Preliminary investigations of photoluminescence spectra and atomic force microscopy showed that the film consists of extended microcrystals and has a thickness of about 1 nm, which corresponds to a single monolayer. The SHG intensity spectrum showed the presence of a 1s (B)-exciton for 1.95-eV photon energy.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    K. I. Bolotin, K. J. Sikes, Z. Jiang, et al., Solid State Commun. 146, 351 (2008).ADSCrossRefGoogle Scholar
  2. 2.
    H. S. Lee, S.-W. Min, Y.-G. Chang, et al., Nano Lett. 12, 3695 (2012).ADSCrossRefGoogle Scholar
  3. 3.
    K. F. Mak, C. Lee, J. Hone, et al., Phys. Rev. Lett. 105, 136805 (2010).ADSCrossRefGoogle Scholar
  4. 4.
    K. F. Mak, K. He, J. Shan, et al., Nat. Nanotechnol. 7, 494 (2012).ADSCrossRefGoogle Scholar
  5. 5.
    A. Splendiani, L. Sun, Y. Zhang, et al., Nano Lett. 10, 1271 (2010).ADSCrossRefGoogle Scholar
  6. 6.
    H. R. Gutiérrez, N. Parea-Lopez, A. L. Elias, et al., Nano Lett. 13, 3447 (2013).ADSCrossRefGoogle Scholar
  7. 7.
    D. Dumcenco, D. Ovchinnikov, K. Marinov, et al., ACS Nano 9, 4611 (2015).CrossRefGoogle Scholar
  8. 8.
    H. Zeng, X. Cui, K. S. Novoselov, et al., Chem. Soc. Rev. 44, 2629 (2015).CrossRefGoogle Scholar
  9. 9.
    W. Zhao, Z. Ghorannevis, L. Chu, et al., ACS Nano 7, 791 (2013).CrossRefGoogle Scholar
  10. 10.
    L. M. Xie, Nanoscale 7, 18392 (2015).ADSCrossRefGoogle Scholar
  11. 11.
    G. Clark, S. Wu, P. Rivera, et al., APL Mater. 2, 101101 (2014).ADSCrossRefGoogle Scholar
  12. 12.
    F. Dybafa, M. P. Polak, J. Kopaczek, et al., Sci. Rep. 6, 26663 (2016).ADSCrossRefGoogle Scholar
  13. 13.
    Y. Li, A. Chernikov, X. Zhang, et al., Phys. Rev. B 90, 205422 (2014).ADSCrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • K. A. Brekhov
    • 1
  • K. A. Grishunin
    • 1
  • N. A. Ilyin
    • 1
  • A. P. Shestakova
    • 1
  • S. D. Lavrov
    • 1
  • E. D. Mishina
    • 1
  1. 1.Moscow Technological UniversityMoscowRussia

Personalised recommendations