Title :
Phonon and electron transport in graphene nanoribbons
Author :
Mazzamuto, F. ; Nguyen, V.Hung ; Do, V. Nam ; Caër, C. ; Chassat, C. ; Saint-Martin, J. ; Dollfus, P.
Author_Institution :
Inst. d´´Electron. Fondamentale, Univ. Paris-Sud, Orsay, France
Abstract :
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.
Keywords :
Green´s function methods; graphene; nanostructured materials; phonons; thermoelectricity; tight-binding calculations; C; atomistic Green´s function; electron transport; empirical force-constant model; graphene nanoribbons; phonon transport; thermoelectric properties; tight-binding Hamiltonian; Chemical elements; Chemicals; Electric potential; Green´s function methods; Phonons; Photonic band gap; Thermal conductivity; Electron; Graphene; NEGF; Nanoribbon; Phonon; Thermoelectric; Transport;
Conference_Titel :
Computational Electronics (IWCE), 2010 14th International Workshop on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-9383-8
DOI :
10.1109/IWCE.2010.5677937
