Cho, Hyun Woo Nam, Seungwoong Kwon, Gyemin Kim, Heesuk Sung, Bong June 2024-01-20T09:32:32Z 2024-01-20T09:32:32Z 2021-09-04 2014-07 1533-4880 https://pubs.kist.re.kr/handle/201004/126668 The effect of non-conductive nano-particles on the electrical percolating network formation and the electrical conductivity of conductive nano-particles in polymer matrices is investigated using Monte Carlo simulations and a percolation theory. Both conductive and non-conductive nano-particles are modeled as spheres but with different diameters. Non-conductive nano-particles are up to four times bigger than conductive nano-particles. Equilibrated configurations for mixtures of nano-particles are obtained via Monte Carlo simulations and are used to estimate the probability (P) of forming an electrical percolating network and the percolation threshold conductive nano-particle volume fraction (phi(c)). As the volume fraction (phi(nc)) of non-conductive nano-particles increases, phi(c) decreases significantly, thus increasing the electrical conductivity. When non-conductive nano-particles mix with conductive nano-particles, they make the effective interaction energy W (r) between conductive nano-particles attractive, which should facilitate the formation of the electrical percolating network. For a given phi(nc), phi(c) increases slightly with an increase in the non-conductive nano-particle diameter (sigma(nc)). We also carry out simulations with non-conductive nano-particles of different structures and find that phi(c) is relatively insensitive to the non-conductive nano-particle structure. English AMER SCIENTIFIC PUBLISHERS WALLED CARBON NANOTUBES PERCOLATION-THRESHOLD NANOCOMPOSITES DIMENSIONS PARTICLES COLLOIDS Monte Carlo Simulation Studies on the Effect of Entropic Attraction on the Electric Conductivity in Polymer Nano-Composites Article 10.1166/jnn.2014.8419 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.7, pp.5103 - 5108 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 7 5103 5108 scie scopus 000332926400045 2-s2.0-84903846486 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article WALLED CARBON NANOTUBES PERCOLATION-THRESHOLD NANOCOMPOSITES DIMENSIONS PARTICLES COLLOIDS Polymer Nano-Composite Electric Conductivity Percolation Entropic Attraction