Dielectric properties of WS2 -coated multiwalled carbon nanotubes studied by energy-loss spectroscopic profiling

Vlad Stolojan, S. R.P. Silva, Michael J. Goringe, R. L.D. Whitby, Wang K. Hsu, D. R.M. Walton, Harold W. Kroto

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Abstract

We investigate experimentally the electronic properties of the coating for multiwalled carbon nanotubes covered in tungsten disulfide (WS2) of various thicknesses. Coatings of thicknesses between 2 and 8 monolayers (ML) are analyzed using energy-loss spectroscopic profiling (ELSP), by studying the variations in the plasmon excitations across the coated nanotube, as a function of the coating thickness. We find a change in the ELSP for coatings above 5 ML thickness, which we interpret in terms of a change in its dielectric properties.

Original languageEnglish
Article number063112
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number6
DOIs
Publication statusPublished - Feb 7 2005

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Stolojan, V., Silva, S. R. P., Goringe, M. J., Whitby, R. L. D., Hsu, W. K., Walton, D. R. M., & Kroto, H. W. (2005). Dielectric properties of WS2 -coated multiwalled carbon nanotubes studied by energy-loss spectroscopic profiling. Applied Physics Letters, 86(6), 1-3. [063112]. https://doi.org/10.1063/1.1861985