Synergy effects in the electrical conductivity behavior of onion‐like carbon and multiwalled carbon nanotubes composites | Zendy

Kranauskaite Ieva | Zendy; Macutkevic Jan | Zendy; Banys Juras | Zendy; Talik Ewa | Zendy; Kuznetsov Vladimir | Zendy; Nunn Nicholas | Zendy; Shenderova Olga | Zendy

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Synergy effects in the electrical conductivity behavior of onion‐like carbon and multiwalled carbon nanotubes composites

Author(s) -

Kranauskaite Ieva,

Macutkevic Jan,

Banys Juras,

Talik Ewa,

Kuznetsov Vladimir,

Nunn Nicholas,

Shenderova Olga

Publication year - 2015

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201451745

Subject(s) - materials science , carbon nanotube , composite material , percolation threshold , dielectric , conductivity , permittivity , graphene , electrical resistivity and conductivity , percolation (cognitive psychology) , dielectric permittivity , carbon fibers , nanotechnology , composite number , chemistry , optoelectronics , engineering , neuroscience , electrical engineering , biology

The dielectric/electric properties of polyurethane composites filled with carbon nanotubes (CNT), onion‐like carbon (OLC), and mixed OLC/CNT are compared across a wide frequency range from hertz to terahertz. The dielectric/electric properties of composites filled with OLC are very attractive and can be improved by addition of small amounts of CNTs due to a strong synergism between the two carbon allotropes. Moreover, in composites with mixed OLC/CNT inclusions, the value of the percolation threshold is lower than the value predicted by the excluded‐volume theory. In composites with mixed OLC/CNT inclusions, the dielectric permittivity and electrical conductivity increase due to a decrease in the average distance between nanocarbon clusters.

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