Optical and dc conductivity study of potassium-doped single-walled carbon nanotube films (Articolo in rivista)

Type
Label
  • Optical and dc conductivity study of potassium-doped single-walled carbon nanotube films (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.61.R2468 (literal)
Alternative label
  • B. Ruzicka and L. Degiorgi R. Gaal, L. Thien-Nga, R. Bacsa, J.-P. Salvetat, and L. Forro´ (2000)
    Optical and dc conductivity study of potassium-doped single-walled carbon nanotube films
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • B. Ruzicka and L. Degiorgi R. Gaal, L. Thien-Nga, R. Bacsa, J.-P. Salvetat, and L. Forro´ (literal)
Pagina inizio
  • R2468 (literal)
Pagina fine
  • R2471 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 61 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Laboratorium fur Festkorperphysik, ETH-Zurich, CH-8093 Zurich, Switzerland Department de Physique, IGA, Ecole Polytechnique Federal de Lausanne, CH-1015 Lausanne, Switzerland (literal)
Titolo
  • Optical and dc conductivity study of potassium-doped single-walled carbon nanotube films (literal)
Abstract
  • We have performed dc transport and optical conductivity measurements on purified and potassium doped thick films of single walled carbon nanotubes. The pristine sample is characterized by a metallic ~Drude! response of the optical properties despite the non-metallic behavior in the dc resistivity measurements. Even though the spectral weight of the metallic component in the electrodynamic response increases with doping, in agreement with the trend of the dc transport properties, there is a quantitative mismatch between the optical @s1(v!0)# and dc transport. Comparing the dc and optical conductivity measurements we conclude that potassium doping influences differently the non-metallic tube-tube contact regions and the intrinsic on-tube transport. (literal)
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