Modeling the Phonon Transport in Nanowire with Different Cross-Section

Autor: Su, Gao Hui, Yang, Zi Chun, Sun, Feng Rui
Zdroj: Applied Mechanics and Materials; September 2013, Vol. 401 Issue: 1 p852-855, 4p
Abstrakt: The phonon transport in silicon nanowire was simulated by Monte Carlo Method (MCM). The effect on the phonon transport of the boundary reflection mode, cross-section size and cross-section shape was studied. Analysis shows that diffuse reflection can result in phonon accumulation at the circumferential boundary. As the cross-section size decrease, the nonuniformity of the temperature distribution within the cross-section becomes more severe. When the area of the square cross-section silicon nanowire (SCSN) is equal to that of the circular cross-section silicon nanowire (CCSN), the thermal conductivity of them is more close to each other.
Databáze: Supplemental Index