声子输运模型预测石墨烯与基体之间界面热导

doi:10.3976/j.issn.1002-4026.2015.06.008

Abstract

Abstract: Thermal boundary conductance (TBC) is predominant in interior thermal transport with the increasing minimization of nanometer components. We theoretically predicted phonon transmission coefficient and TBC between graphene and Si substrate with diffuse mismatch model (DMM) and inelastic scattering model and conducted analysis with phonon transport theory. Results show that both phonon transmission coefficient and TBC increase with the increase of temperature. They gradually converge at high temperature due to mode saturation of excited phonon. Inelastic scattering provides extra channels for phonon transmission,which cause the increase of phonon transmission coefficient and TBC capacity.

Key words: inelastic scattering, dispersion relation, graphene, thermal boundary conductance, phonon

CLC Number:

TK124

YUAN Kunpeng, XU Zhe, WANG Zhaoliang. Prediction of thermal boundary conductance between graphene and substrate with phonon transport theory[J].SHANDONG SCIENCE, 2015, 28(6): 47-51.

References

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Prediction of thermal boundary conductance between graphene and substrate with phonon transport theory

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