Journal ArticleDOI
Physical properties of nanocrystalline MoS2 and WS2 particles produced by CO2 laser pyrolysis
TLDR
In this article, X-ray diffraction (XRD), transmission electron microscopy (TEM), and Raman scattering were used to determine the particle size, crystallite size, and the structural phase of 2H-MoS2 and 3H-WS2 powders.Abstract:
Nanocrystalline powders of 2H-MoS2 and 2H-WS2 with average particle size 5 and 9 nm, respectively, have been produced using C0 2 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 (MoS 2).read more
Citations
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Book ChapterDOI
Transition metal nitride and carbide nanoparticles
TL;DR: In this article, the authors discussed the production of nitrides (oxynitrides) and carbides (oxycarbides) of Group 6B elements (Mo and W) and Fe by laser pyrolysis of reactant gases.
References
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Book
Elements of X-ray diffraction
TL;DR: In this article, the authors present a chemical analysis of X-ray diffraction by Xray Spectrometry and phase-diagram Determination of single crystal structures and phase diagrams.
Journal ArticleDOI
Infrared and Raman Studies of Long-Wavelength Optical Phonons in Hexagonal Mo S 2
Terence J. Wieting,J. L. Verble +1 more
TL;DR: In this article, infrared and Raman measurements of lattice vibrations in hexagonal Mo${\mathrm{S}}_{2}$ have been made over the combined range 20-4000
Journal ArticleDOI
Transmission spectra of some transition metal dichalcogenides. II. Group VIA: trigonal prismatic coordination
A R Beal,J C Knights,W Y Liang +2 more
TL;DR: In this article, the transmission spectra of the layer type group VIA transition metal dichalcogenides have been measured at liquid helium temperature and sharpening of previously reported features have been found in addition to a great deal of new fine structure not reported in earlier work.