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Length, width and roughness dependent thermal conductivity of graphene nanoribbons (CROSBI ID 219007)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Sonvanea, Yogesh ; Gupta, Sanjeev K. ; Ravala, Pooja ; Lukačević, Igor ; Thakor, Pankajsinh B. Length, width and roughness dependent thermal conductivity of graphene nanoribbons // Chemical physics letters, 634 (2015), 16-19. doi: 10.1016/j.cplett.2015.05.036

Podaci o odgovornosti

Sonvanea, Yogesh ; Gupta, Sanjeev K. ; Ravala, Pooja ; Lukačević, Igor ; Thakor, Pankajsinh B.

engleski

Length, width and roughness dependent thermal conductivity of graphene nanoribbons

This letter reports on the investigation of temperature dependent thermal conductivity along a long free-standing graphene nanoribbon (GNR) by a one-dimensional direction-dependent phonon-boundary scattering in the frame of linearized phonon Boltzmann transport method. It is observed that GNR has highly length and width dependent thermal conductivity due to the difference between in-plane and out-of-plane phonon modes in the phonon dispersion curve. We show that phonon mediated thermal conduction increases with size, while it decreases with increasing edge roughness. These results are relevant for tailoring and engineering of the thermal conductivity of graphene nanoribbons in thermoelectronic and photonic devices.

graphene nanoribbon ; phonons ; thermal conductivity

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Podaci o izdanju

634

2015.

16-19

objavljeno

0009-2614

10.1016/j.cplett.2015.05.036

Povezanost rada

Fizika

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