Title :
Thermoelectric properties of disordered graphene antidot devices
Author :
Gunst, Tue ; Lü, Jing-Tao ; Markussen, Troels ; Jauho, Antti-Pekka ; Brandbyge, Mads
Abstract :
We calculate the electronic and thermal transport properties of devices based on finite graphene antidot lattices (GALs) connected to perfect graphene leads. We use an atomistic approach based on the π-tight-binding model, the Brenner potential, and employing recursive Green´s functions. We consider the effect of random disorder on the electronic and thermal transport properties, and examine the potential gain of thermoelectric merit by tailoring of the disorder. We propose several routes to optimize the transport properties of the GAL systems. Finally, we illustrate how quantum thermal transport can be addressed by molecular dynamics simulations, and compare to the Green´s function results for the GAL systems in the ballistic limit.
Keywords :
Green´s function methods; ballistic transport; fullerene devices; graphene; molecular dynamics method; nanoelectronics; recursive functions; thermoelectric devices; thermoelectricity; tight-binding calculations; π-tight-binding model; Brenner potential; C; GAL systems; atomistic approach; disordered graphene antidot devices; electronic transport properties; finite graphene antidot lattices; molecular dynamics simulations; perfect graphene leads; quantum thermal transport; recursive Green functions; thermal transport properties; thermoelectric merit potential gain; thermoelectric properties; Damping; Heating; Isotopes; Lattices; Noise; Phonons; Thermal conductivity;
Conference_Titel :
Computational Electronics (IWCE), 2012 15th International Workshop on
Conference_Location :
Madison, WI
Print_ISBN :
978-1-4673-0705-5
DOI :
10.1109/IWCE.2012.6242835