Raman Spectra of Graphene-Like Nanoparticles of Molybdenum and Tungsten Disulfides

Authors

  • A. Naumenko Taras Shevchenko National University of Kyiv
  • L. Kulikov Frantsevich Institute for Problems of Materials Science, Nat. Acad. of Sci. of Ukraine
  • N. Konig Frantsevich Institute for Problems of Materials Science, Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe61.06.0561

Keywords:

MoS2, WS2 layered materials, graphene-like materials, Raman spectroscopy, vibrational-electronic interaction

Abstract

The Raman spectra obtained in the case of graphene-like 2H-MoS2 and 2H-WS2 nanoparticles and depending on their average sizes in the [013] and [110] crystallographic directions are reported. It is established that the Raman spectra of graphene-like 2H-MoS2 nanoparticles and micron particles are closely related. Similarities of the Raman spectra point to the homogeneity of graphene-like 2H-MoS2 nanoparticles. The small shifts and the Raman spectrum line widening, for graphene-like 2H-MoS2 and 2H-WS2 nanoparticles, which are caused by the influence of the sizes of nanoparticles and their anisotropy, have been observed. The dependence of Raman spectra of graphene-like 2H-MoS2 nanoparticles on the their size in the crystallographic direction [110] is first shown, i.e. the positions of bands in the spectrum depend not only on the number of nanolayers S-Mo-S, but also on the size in the [110] direction.

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Published

2019-01-06

How to Cite

Naumenko, A., Kulikov, L., & Konig, N. (2019). Raman Spectra of Graphene-Like Nanoparticles of Molybdenum and Tungsten Disulfides. Ukrainian Journal of Physics, 61(6), 556. https://doi.org/10.15407/ujpe61.06.0561

Issue

Section

Nanosystems