Modeling the reduction of thermal conductivity in core/shell and diameter-modulated silicon nanowires - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2015

Modeling the reduction of thermal conductivity in core/shell and diameter-modulated silicon nanowires

Résumé

The thermal conductivity of a series of structural, diameter, and core/shell modulated silicon nanowires is computed by molecular dynamics simulations using the nonequilibrium method. The purpose of this study is to appraise the impact of surface roughness, amorphous parts integration, and diameter modulation on the thermal conductivity reduction. The addition of both amorphous regions and nanoconstrictions allows us to reach a thermal conductivity close to that of the amorphous pristine nanowires, while preserving a certain degree of crystallinity. This could result in interesting properties for thermoelectric applications.
Fichier principal
Vignette du fichier
PhysRevB.91.115404.pdf (1.92 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01486117 , version 1 (09-03-2017)

Identifiants

Citer

Etienne Blandre, Laurent Chaput, Samy Merabia, David Lacroix, Konstantinos Termentzidis. Modeling the reduction of thermal conductivity in core/shell and diameter-modulated silicon nanowires. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 91 (11), pp.115404 - 115404. ⟨10.1103/PhysRevB.91.115404⟩. ⟨hal-01486117⟩
189 Consultations
292 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More