【摘 要】
：
The ability to reduce thermal conductivity through nanostructures has attracted interest in silicon and other materials for thermoelectric applications.In p
【机 构】
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DepartmentofMechanicalScienceandEngineering,UIUC,USA
【出 处】
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The 2nd International Conference on Phononics and thermal En
论文部分内容阅读
The ability to reduce thermal conductivity through nanostructures has attracted interest in silicon and other materials for thermoelectric applications.In particular,the boundary scattering of phonons has been exploited to report significant enhancement in the figure of merit.It is implicitly assumed that the introduction of crystal boundaries or other defects does not affect charge transport provided there is a difference in the mean free paths of electrons and phonons.However,in a non-equilibrium picture of transport with simultaneous and self-consistent transport of electrons and phonons,phonon boundary scattering can indeed alter momentum transfer between electrons and phonons,with significant impact on the Seebeck coefficient.Here,we discuss experiments and theory to better understand the Seebeck effect from a non-equilibrium perspective.
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