Title

Graphene nanomeshes: Onset of conduction band gaps

Document Type

Article

Publication Date

10-8-2010

Abstract

Hückel simulations of large finite graphene nanomeshes with lithographically induced holes show sizable band gaps in the conduction while the optical absorption has generally the same semi-metal character as pure graphene. There is a strong dependence of the band gap on the angle between the graphene axis and the periodic hole axis. Simple modification of on-site energies shows that substituents on the edges of the holes could also have a significant effect. These simulations show that graphene nanomeshes, which have been recently fabricated, are potentially useful tunable materials for electronic applications. © 2010 Elsevier B.V. All rights reserved.

Publication Source (Journal or Book title)

Chemical Physics Letters

First Page

334

Last Page

337

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