Synthesis and characterization of single-walled carbon nanotubes filled with the superionic material SnF2

We report X-ray powder diffraction, high resolution transmission electron microscopy and Raman spectroscopy of the semiconducting single-walled carbon nanotubes filled with the superionic material SnF2. We first have obtained the Raman spectra of filling SWCNTs using the near-infrared excitation (10...

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Veröffentlicht in:Carbon (New York) 2008-10, Vol.46 (12), p.1574-1578
Hauptverfasser: Zakalyukin, R.M., Mavrin, B.N., Dem’yanets, L.N., Kiselev, N.A.
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Sprache:eng
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Zusammenfassung:We report X-ray powder diffraction, high resolution transmission electron microscopy and Raman spectroscopy of the semiconducting single-walled carbon nanotubes filled with the superionic material SnF2. We first have obtained the Raman spectra of filling SWCNTs using the near-infrared excitation (1064 nm). Our results show that SnF2 behaves as an electron acceptor with small charge transfer from nanotubes to SnF2. We interpret the large high-frequency shift of radial breathing modes as due to both charge transfer and the increasing interaction between filling material and nanotubes.
ISSN:0008-6223
DOI:10.1016/j.carbon.2008.06.055