The interest in nanostructures with carbon nanotubes (CNTs) has considerably grown in recent years for their remarkable benefits in different electronic and electromagnetic applications. One of the most significant aspects that can be reached by means of their introduction inside an insulating matrix is its variation of electrical conductivity. In a threedimensional space, the generation of a matrix loaded with a random distribution of impenetrable cylinders, to guarantee the physical feasibility of the model, is simulated to evaluate, with Monte Carlo method, the electrical percolation thresholds in Carbon Nanotubebased composites. After percolation, the electrical conductivity of the nanocomposite is estimated through a 3D resistor network in which the tunnelling effect is taken into account.
Numerical Study of the Electrical Behaviour in Carbon Nanotube Composites
EGIZIANO, Luigi;GIUSTINIANI, ALESSANDRO;LAMBERTI, PATRIZIA;SPINELLI, GIOVANNI;TUCCI, Vincenzo;ZAMBONI, Walter
2011
Abstract
The interest in nanostructures with carbon nanotubes (CNTs) has considerably grown in recent years for their remarkable benefits in different electronic and electromagnetic applications. One of the most significant aspects that can be reached by means of their introduction inside an insulating matrix is its variation of electrical conductivity. In a threedimensional space, the generation of a matrix loaded with a random distribution of impenetrable cylinders, to guarantee the physical feasibility of the model, is simulated to evaluate, with Monte Carlo method, the electrical percolation thresholds in Carbon Nanotubebased composites. After percolation, the electrical conductivity of the nanocomposite is estimated through a 3D resistor network in which the tunnelling effect is taken into account.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
