Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 54, Issue 9-10, Pages 2014-2020Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2011.01.001
Keywords
Non-equilibrium molecular dynamics; Green-Kubo; Superlattices; Cross-, in- and intra-plane thermal conductivity; Rough interfaces; Shape of interfaces
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Funding
- CNRS [ANR-07-JCJC-0034, ANR-07-NANO-047-03]
- Agence Nationale de la Recherche (ANR) [ANR-07-JCJC-0034] Funding Source: Agence Nationale de la Recherche (ANR)
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This paper describes a heat transfer study of binary Lennard Jones superlattices, focusing on the influence of interface topology on cross-plane thermal conductivity, by using both non-equilibrium and equilibrium molecular dynamics methods. Both methods reveal the same trends of thermal conductivity. In particular, interfacial roughness is shown to slightly increase cross-plane thermal conductivity in comparison to smooth interfaces. Our results highlight paths for optimizing superlattices for thermoelectric conversion applications and for thermal management solutions in micro- and nano-systems. (C) 2011 Elsevier Ltd. All rights reserved.
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