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- Biryulin, YF, et al.
(författare)
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Strongly non-linear carbon nanofibre influence on electrical properties of polymer composites
- 2008
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Ingår i: Fullerenes, nanotubes, and carbon nanostructures. - : Informa UK Limited. - 1536-383X .- 1536-4046. ; 16:5-6, s. 629-633
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Tidskriftsartikel (refereegranskat)abstract
- Composites of carbon nanofibres (CNF) (30-50 nm diam., length up to 1 mu m) in two polymer matrices (polybutadiene-styrene and polypyrrhol) show strong non-linearities of conductivity vs. CNF concentration. We have studied their voltage-current dependencies, and observed correlation of their extrema and layer morphology. Multistability of conductivity is discovered, with apparent effect of magnetic field effect on it in polypyrrhol-based composites. In addition CNF spatial configuration influence on layers' conductivity is discussed.
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2. |
- Zakharova, IB, et al.
(författare)
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Optical and vibrational properties of thin film Fullerene-Zn(II) tetraphenylporphyrin complexes
- 2008
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Ingår i: Fullerenes, nanotubes, and carbon nanostructures. - : Taylor & Francis. - 1536-383X .- 1536-4046. ; 16:5-6, s. 424-429
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Tidskriftsartikel (refereegranskat)abstract
- In this work a novel material, fullerene-Zn(II) tetraphenylporphyrin, is obtained and studied using UV-Vis-NIR absorption and Raman scattering methods. C-60-ZnTPP thin films were produced by vacuum evaporation in hot-wall reactor. The detection of the A(g2)-derived modes at 1460 and 1452cm(-1) in the Raman spectra manifests the charge-transfer C-60-ZnTPP complex formation. It is shown that additional absorption band at 1.38-1.53 eV observed in the films corresponds to the HOMO-LUMO gap of C-60-ZnTPP complex.
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