Cross-plane heat conduction in nanoporous silicon thin films by phonon Boltzmann transport equation and Monte Carlo simulations

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• 作者：Yu-Chao Hua (华钰超) ; Bing-Yang Cao (曹炳阳) ; ^{caoby@mail.tsinghua.edu.cn}
• 关键词：Thermoelectric ; Nanoporous silicon thin film ; Effective thermal conductivity ; Phonon Boltzmann transport equation ; Monte Carlo ; Phononic crystals
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：1401-1408
• 全文大小：661 K
• 卷排序：111

文摘

A model for cross-plane thermal conductivity of nanoporous films is proposed by BTE. Our model captures the effects for thickness, pore radius and porosity simultaneously. A MC method is developed to simulate phonon transport in nanoporous Si films. Good agreements between the present model and MC simulations have been achieved.