Asymmetric energy transport in defected boron nitride nanoribbons: Implications for thermal rectification

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Abstract

Using molecular dynamics simulations, the thermal transport properties of boron nitride nanoribbons (BNNR) containing geometrically-asymmetric triangular nano-vacancies were investigated. By suitably interpreting the time-evolution of spatially decomposed heat-current autocorrelation function in terms of phonon propagation characteristics, we have demonstrated the possibility of observing defect induced direction-dependent thermal transport in BNNR. This was further confirmed by appropriate analysis of direction dependent thermal diffusivity estimations in BNNR.

Original languageEnglish (US)
Article number041703
JournalAIP Advances
Volume1
Issue number4
DOIs
StatePublished - Dec 1 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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