Localized Resonances and Modal Hybridization for Thermal Conductivities of Nano Materials

Abstract

The localized resonances and modal hybridization was used to present thermal conductivities of organic based nanomaterials. It was found that fullerene molecules were wielded onto single walled nanotubes were reduced. The hybridization between the modes of the fullerene and the carbon nanotubes formed resonant phonon band anticrossings by bonded fullerene molecules. When hybridization strength was increased due to increasing periodicity and surface coverage of fullerene generated a platform for the study of thermal transport in material systems. The nano materials termed as nanobuds structure produced extremely high current density were found optically transparent. The enhancement of physical properties fullerene functionalization prevented slippage of hybrid carbon nanotube materials made them immobile opposed to mobile character of fullerene and carbon nanotubes. The thermal transport in hybrid materials comprised chemically functionalized carbon nanotubes with fullerene molecules. We have made the study of influence of covalently bonded carbon molecules on the surface of carbon nanotubes on their thermal transport properties through a series of molecular dynamics simulations and lattice dynamics calculations. It was found that thermal conductivity of carbon nanotubes was reduced at room temperature with periodic inclusion of covalently bonded fullerene molecules on their sidewalls and produced large tenability in thermal transport of carbon nanotubes. The obtained results were found in good agreement with previously obtained results.