New Research in Physics

Thermal Transport in Silicon Naonowires

Author

azizeh Aghababaei

Damghan University

https://doi.org/10.61882/jmrph.8.2.44
Abstract
Silicon nanowires have attracted the attention of many researchers in recent years due to their electrical and mechanical properties and also its potential applications in many fields such as biosensors. In this study, we theoretically investigated the phonon transport through silicon nanowires in the presence of isotope impurities. Heat transfer properties of silicon nanowires in the <100> direction were studied using the non-equilibrium Green’s function method and the impurity atoms were placed in the middle part of the structure. The results of this research showed that, in the presence of isotope impurity, thermal conductivity decreases. The effect of impurity atom mass was also investigated and the results of this study also indicated that with the increase in the mass of the impurity atom, the thermal conductivity decreases more and the reason for this should be investigated in the dependence of the phonon frequency on the mass.

Keywords

Silicon nanowires
Impurity
phonon transport
Thermal conductivity
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New Research in Physics
Volume 8, Issue 2 - Serial Number 15
February 2024
Pages 44-49

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