Phonon and electron transport in graphene nanoribbons

Phonon and electron transport in graphene nanoribbons

An atomistic Green's function approach to simulating electron and phonon transport in graphene nanoribbons (GNRs) is presented. Phonons are described by an empirical Force-Constant model including interactions up to the fifth nearest neighbour while the nearest neighbour tight-binding Hamiltoni...

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Hauptverfasser: Mazzamuto, F, Nguyen, V H, Do, V N, Caer, C, Chassat, C, Saint-Martin, J, Dollfus, P
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Chemical elements
Chemicals
Electric potential
Electron
Graphene
Green's function methods
Nanoribbon
NEGF
Phonon
Phonons
Photonic band gap
Thermal conductivity
Thermoelectric
Transport
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Beschreibung
Zusammenfassung:An atomistic Green's function approach to simulating electron and phonon transport in graphene nanoribbons (GNRs) is presented. Phonons are described by an empirical Force-Constant model including interactions up to the fifth nearest neighbour while the nearest neighbour tight-binding Hamiltonian is used for electrons. The model was applied to investigate the edge dependence of GNR thermoelectric properties. The factor of merit ZT appears to be strongly enhanced in mixed-edge ribbons.
DOI:10.1109/IWCE.2010.5677937