Groupe de Physique Statistique

Equipe 106, Institut Jean Lamour

                     
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Séminaire de groupe

Quantum capacitance of warped and perforated graphene monolayers
Ernesto Medina
IVIC, Caracas, Venezuela
jeudi 21 avril 2016 , 10h25
Salle de séminaire du groupe de Physique Statistique

The total capacitance of graphene monolayers on a substrate depends on the electrostatic contribution in series with the quantum component, and thus it is dominated by the smallest of the two. In mesoscopic devices the quantum component is relatively small close to the Fermi energy (zero), hindering high capacitance applications. In order to increase the latter contribution we investigate two strategies: warping and perforating, in order maximize the presence of zig-zag boundaries that harbor localized states with energies close to zero.

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