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Physical Properties of Nanocrystalline MoS2 and WS2 Particles Produced by CO2 Laser Pyrolysis

Published online by Cambridge University Press:  22 February 2011

Xiang-Xin Bi ,
Ying Wang ,
W. T. Lee ,
Kai-An Wang ,
S. Bandow  and
P. C. Eklund
Xiang-Xin Bi
Affiliation:
Center for Applied Energy ResearchUniversity of Kentucky, Lexington, KY40511-8433, USA
Ying Wang
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA
W. T. Lee
Affiliation:
Center for Applied Energy ResearchUniversity of Kentucky, Lexington, KY40511-8433, USA
Kai-An Wang
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA
S. Bandow
Affiliation:
Instrument Center, Institute for Molecular Science, Myodaiji, Okazaki, 444, Japan
P. C. Eklund
Affiliation:
Center for Applied Energy ResearchUniversity of Kentucky, Lexington, KY40511-8433, USA Department of Physics and Astronomy, University of Kentucky, Lexington, KY40511-8433, USA
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Abstract

Nanocrystalline powders of 2H-MoS2 and 2H-WS2 with average particle size 5 and 9 nm, respectively, have been produced using C02laser 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).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 327: Symposium N – Covalent Ceramics II: Non-Oxides , 1993 , 47
Copyright
Copyright © Materials Research Society 1994

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