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e-Journal of Surface Science and Nanotechnology
Vol. 13 (2015) p. 54-58

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http://doi.org/10.1380/ejssnt.2015.54

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We study the electronic transport properties of armchair graphene nanoribbons with a width of up to 12 nm bridged between two Au electrodes using first-principles calculations. The transport properties sensitively depend on the ribbon width, even though the width reaches 12 nm. The variation of transport properties is ascribed to the detailed electronic structures of graphene ribbons, which sensitively depend on their width. The band structure and the symmetry of π state of the graphene play important roles in determining the transport properties. [DOI: 10.1380/ejssnt.2015.54]

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