Selective interface transparency in graphene nanoribbon based molecular junctions

Abstract

We investigate the interface effects in graphene based all-carbon molecular electronics and probe opposite effects with respect to the intrinsic feature of an embedded core graphene nanoflake (GNF). For metallic GNFs, good/poor contact transparency occurs when the core device aligns with the center/edge of the electrode. The situation is reversed for a semiconducting GNF as a device.