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Physical properties of nanocrystalline MoS2 and WS2 particles produced by CO2 laser pyrolysis

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Nanocrystalline powders of 2H-MoS2 and 2H-WS2 with average particle size 5 and 9 nm, respectively, have been produced using CO2 laser pyrolysis. Typical production rate for these nanoparticles is 2g/hr. Particle size, crystallite size, and the structural phase were determined using X-ray diffraction(XRD), transmission electron microscopy(TEM), and Raman scattering. Particle size effects may have been observed in the Raman-active modes (WS2 and MoS2) and in the band-edge excitons (MoS2).

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Acknowledgments

This work was supported, in part, by a grant from the United States Department of Energy (DOE# DE-FC22-90PC90029)

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Authors and Affiliations

  1. Center for Applied Energy Research, University of Kentucky, Lexington, KY40511-8433, USA

    Xiang-Xin Bi, W.T. Lee & P.C. Eklund

  2. Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA

    Ying Wang, Kai-An Wang & P.C. Eklund

  3. Instrument Center, Institute for Molecular Science, Myodaiji, Okazaki, 444, Japan

    S. Bandow

Authors
  1. Xiang-Xin Bi
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  2. Ying Wang
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  3. W.T. Lee
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  4. Kai-An Wang
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  5. S. Bandow
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  6. P.C. Eklund
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Bi, XX., Wang, Y., Lee, W. et al. Physical properties of nanocrystalline MoS2 and WS2 particles produced by CO2 laser pyrolysis. MRS Online Proceedings Library 327, 47–52 (1993). https://doi.org/10.1557/PROC-327-47

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