DC and AC conductivity of carbon nanotubes-polyepoxy composites
By S. Barrau, P. Demont, Alain Peigney, Christophe V. F. P. Laurent, C. Lacabanne. 2003
561 citations recorded by the source corpus.
The dc and ac conductivities of carbon nanotubes−polyepoxy composites have been investigated from 20 to 110 °C in the frequency range 10-2−106 Hz as a function of the conductive weight fraction p ranging from 0.04 to 2.5 wt %. The frequency dependence of the measured conductivity obeys the universal dynamic response (UDR): a dc plateau followed, above a critical frequency ωc, by the ωs power law with exponent s 0.6−1. The dc conductivity follows a percolation scaling law: σdc (p − pc)t with pc = 0.3 wt % and t = 1.4−1.8, according to the temperature. σdc reached 10-4 S/cm for 2.5 wt % CNTs content and increases with increasing temperature. Considering a biased random walk in three dimensions approach, we may explain the scaling law of ωc with p and its proportionality to σdc. The universality of ac conduction in carbon nanotubes−polymer composites is examined by the construction of master curves.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/ec14c722640f9498b2672999f612df9d1f9ac2f7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Effect of functionalization on the thermo-mechanical and electrical behavior of multi-wall carbon nanotube/epoxy composites (2011, background): “[32] Barrau S, Demont P, Peigney A, Laurent C, Lacabanne C.”
- Advanced polyimide materials: Syntheses, physical properties and applications (2012, background): “[406] Barrau S, Demont P, Peigney A, Laurent C, Lacabanne C.”