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Nathaniel S. Safron, Adam S. Brewer and Michael S. Arnold Semiconducting Two-Dimensional Graphene Nanoconstriction Arrays Small 7

Article first published online: 23 DEC 2010 | DOI: 10.1002/smll.201001193

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Two-dimensional sub-20-nm graphene nanoconstriction arrays are fabricated in a scalable top–down fashion using self-assembled nanospheres as lithographic templates. The arrays act as semiconductors with a field-effect conductance modulation of up to 450 with bandgaps that scale inversely with the nanoconstriction width and simultaneously as 2D arrays of coupled Coulomb islands affected by single-electron charging events.

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