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硅纳米薄膜中声子弹道扩散导热的蒙特卡罗模拟

华钰超 董源 曹炳阳

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硅纳米薄膜中声子弹道扩散导热的蒙特卡罗模拟

华钰超, 董源, 曹炳阳

Monte Carlo simulation of phonon ballistic diffusive heat conduction in silicon nanofilm

Hua Yu-Chao, Dong Yuan, Cao Bing-Yang
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  • 通过建立声子散射概率函数描述声子在输运过程中的散射,提出了一种模拟声子弹道扩散导热的蒙特卡罗方法,并将其应用于硅纳米薄膜中的稳态和瞬态弹道扩散导热过程的研究. 提出的蒙特卡罗方法对边界发射的声子束进行跟踪,根据散射概率函数模拟声子束在传播区域内经历的散射过程,并通过统计声子束的分布得到温度分布. 稳态导热过程的模拟发现,尺寸效应会引起边界温度跳跃,其值随着Knudsen数的增大而增大;计算的硅纳米薄膜的热导率随着厚度的增大而增大,与文献中的实验数据和理论模型相符. 通过瞬态导热过程的模拟得到了纳米薄膜内的温度分布随时间的变化,发现瞬态导热过程中的热波现象与空间尺度相关,材料尺寸越小,弹道输运越强,薄膜中的热波现象也越显著.
    A Monte Carlo (MC) method is proposed by establishing a new model of phonon scattering processes with random sampling according to a scattering probability function. The MC scheme is used to simulate steady and transient ballistic-diffusive heat conduction in silicon nanofilm. In the MC simulations, we trace the phonon bundles that emit into media from the boundaries, and obtain the temperature profiles through statistics of the distribution of phonon bundles. It is found that the size effect of phonon transport leads to a boundary temperature jump which increases with the Knudsen number increasing. The thermal conductivity of the silicon nanofilm is calculated and the results suggest that nanofilm thermal conductivity increases with film thickness increasing, which is in good agreement with the experimental data as well as the results from the theoretical model. The temperature profiles vary with time in the transient simulations, which shows that the heat wave is related to not only time scale but also spatial scale. When the spatial scale becomes smaller, the ballistic transport is more dominant, which leads to stronger heat waves.
    • 基金项目: 国家自然科学基金(批准号:51322603,51321002,51136001)、新世纪优秀人才支持计划和清华大学自主科研计划资助的课题.
    • Funds: Project supported by the National Nature Foundation of China (Grant Nos. 51322603, 51321002, 51136001), the Program for New Century Excellent Talents in University, China, and the Initiative Scientific Research Program of Tsinghua University, China.
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    Chen Y F, Li D Y, Lukes J R, Majumdar A 2005 J. Heat Trans. T. Asme 127 1129

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    Wang Z, Zhao R J, Chen Y F 2010 Sci. China Tech. Sci. 53 429

    [14]

    Jeng M S, Yang R G, Song D, Chen G 2008 J. Heat Trans. T. Asme 130 042410

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    Lacroix D, Joulain K, Lemonnier D 2005 Phys. Rev. B 72 064305

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    Siegel R, Howell J R 1992 Thermal Radiation Heat Transfer (Washington, D.C.: Hemisphere Publish Corporation)

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    Cao B Y, Kong J, Xu Y, Yung K L, Cai A 2013 Heat Transfer Eng. 34 2131

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    Huang K (adapted by Han R Q) 1988 Solid Physics (Beijing: High Education Press) pp122–133 (in Chinese) [黄昆原著, (韩汝琦改编) 1988 固体物理(北京: 高等教育出版社)第122–133页]

    [19]

    Ju Y S, Goodson K E 1999 Appl. Phys. Lett. 74 3005

    [20]

    Liu W, Asheghi M 2004 Appl. Phys. Lett. 84 3819

    [21]

    Asheghi M, Leung Y K, Wong S S, Goodson K E 1997 Appl. Phys. Lett. 71 1798

    [22]

    Ju Y S, Kurabayashi K, Goodson K E 1999 Thin Solid Films 339 160

    [23]

    Majumdar A 1993 J. Heat Trans. T. Asme 115 7

    [24]

    Li B W, Wang J 2003 Phys. Rev. Lett. 91 044301

    [25]

    Yang N, Zhang C, Li B W 2010 Nano Today 5 85

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    Rieder Z, Lebowitz J L, Lieb E 1967 J. Math. Phys. 8 1073

    [27]

    Bruesch P 1982 Phonons: Theory and Experiment (Vol.3) (Berlin: Springer-Verlag, Berlin Heidelberg)

    [28]

    Körner C, Bergmann H W 1998 Appl. Phys. A 67 397

    [29]

    Naqvi K R, Waldenstrom S 2005 Phys. Rev. Lett. 95 065901

    [30]

    Alvareza F X, Jou D 2010 J. Heat Trans. T. Asme 132 012404

    [31]

    Cao B Y, Guo Z Y 2007 J. Appl. Phys. 102 53503

    [32]

    Ackerman C C, Bertman B, Fairbank H A, Guyer R A 1966 Phys. Rev. Lett. 16 789

  • [1]

    Flik M, Choi B I, Goodson K E 1992 J. Heat Trans. T. Asme 114 666

    [2]

    Ziman J M 1968 Electrons and Phonons (Oxford: Oxford University Press) p15

    [3]

    Joshi A A, Majumdar A 1993 J. Appl. Phys. 74 31

    [4]

    Chen G 2000 Phys. Rev. Lett. 86 2297

    [5]

    Alvareza F X, Jou D 2007 Appl. Phys. Lett. 90 083109

    [6]

    Dong Y, Cao B Y, Guo Z Y 2011 J. Appl. Phys. 110 063504

    [7]

    Ye Z Q, Cao B Y, Guo Z Y 2014 Carbon 66 567

    [8]

    Wu G Q, Kong X R, Sun Z W, Wang Y H 2006 Acta Phys. Sin. 55 1 (in Chinese) [吴国强, 孔宪仁, 孙兆伟, 王亚辉 2006 物理学报 55 1]

    [9]

    Jiaung W S, Ho J R 2008 Phys. Rev. E 77 066710

    [10]

    Klitsner T, van Cleve J E, Fischer H E, Pohl R O 1988 Phys. Rev. B 38 7576

    [11]

    Peterson R B 1994 J. Heat Trans.-T ASME 116 815

    [12]

    Chen Y F, Li D Y, Lukes J R, Majumdar A 2005 J. Heat Trans. T. Asme 127 1129

    [13]

    Wang Z, Zhao R J, Chen Y F 2010 Sci. China Tech. Sci. 53 429

    [14]

    Jeng M S, Yang R G, Song D, Chen G 2008 J. Heat Trans. T. Asme 130 042410

    [15]

    Lacroix D, Joulain K, Lemonnier D 2005 Phys. Rev. B 72 064305

    [16]

    Siegel R, Howell J R 1992 Thermal Radiation Heat Transfer (Washington, D.C.: Hemisphere Publish Corporation)

    [17]

    Cao B Y, Kong J, Xu Y, Yung K L, Cai A 2013 Heat Transfer Eng. 34 2131

    [18]

    Huang K (adapted by Han R Q) 1988 Solid Physics (Beijing: High Education Press) pp122–133 (in Chinese) [黄昆原著, (韩汝琦改编) 1988 固体物理(北京: 高等教育出版社)第122–133页]

    [19]

    Ju Y S, Goodson K E 1999 Appl. Phys. Lett. 74 3005

    [20]

    Liu W, Asheghi M 2004 Appl. Phys. Lett. 84 3819

    [21]

    Asheghi M, Leung Y K, Wong S S, Goodson K E 1997 Appl. Phys. Lett. 71 1798

    [22]

    Ju Y S, Kurabayashi K, Goodson K E 1999 Thin Solid Films 339 160

    [23]

    Majumdar A 1993 J. Heat Trans. T. Asme 115 7

    [24]

    Li B W, Wang J 2003 Phys. Rev. Lett. 91 044301

    [25]

    Yang N, Zhang C, Li B W 2010 Nano Today 5 85

    [26]

    Rieder Z, Lebowitz J L, Lieb E 1967 J. Math. Phys. 8 1073

    [27]

    Bruesch P 1982 Phonons: Theory and Experiment (Vol.3) (Berlin: Springer-Verlag, Berlin Heidelberg)

    [28]

    Körner C, Bergmann H W 1998 Appl. Phys. A 67 397

    [29]

    Naqvi K R, Waldenstrom S 2005 Phys. Rev. Lett. 95 065901

    [30]

    Alvareza F X, Jou D 2010 J. Heat Trans. T. Asme 132 012404

    [31]

    Cao B Y, Guo Z Y 2007 J. Appl. Phys. 102 53503

    [32]

    Ackerman C C, Bertman B, Fairbank H A, Guyer R A 1966 Phys. Rev. Lett. 16 789

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出版历程
  • 收稿日期:  2013-05-23
  • 修回日期:  2013-09-20
  • 刊出日期:  2013-12-05

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