Please use this identifier to cite or link to this item:
|Title:||Reduction of thermal conductivity by nanoscale 3D phononic crystal|
|Citation:||Yang, L., Yang, N., Li, B. (2013). Reduction of thermal conductivity by nanoscale 3D phononic crystal. Scientific Reports 3 : -. ScholarBank@NUS Repository. https://doi.org/10.1038/srep01143|
|Abstract:||We studied how the period length and the mass ratio affect the thermal conductivity of isotopic nanoscale three-dimensional (3D) phononic crystal of Si. Simulation results by equilibrium molecular dynamics show isotopic nanoscale 3D phononic crystals can significantly reduce the thermal conductivity of bulk Si at high temperature (1000â.K), which leads to a larger ZT than unity. The thermal conductivity decreases as the period length and mass ratio increases. The phonon dispersion curves show an obvious decrease of group velocities in 3D phononic crystals. The phonon's localization and band gap is also clearly observed in spectra of normalized inverse participation ratio in nanoscale 3D phononic crystal.|
|Source Title:||Scientific Reports|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 14, 2018
WEB OF SCIENCETM
checked on Jun 20, 2018
checked on May 11, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.