Nano Lett. 2009 Jul;9(7):2725-9. doi: 10.1021/nl901226s.

Chemically induced mobility gaps in graphene nanoribbons: a route for upscaling device performances.

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CEA, LETI, MINATEC, F38054 Grenoble, France.

Abstract

We report a first-principles based study of mesoscopic quantum transport in chemically doped graphene nanoribbons with a width up to 10 nm. The occurrence of quasi-bound states related to boron impurities results in mobility gaps as large as 1 eV, driven by strong electron-hole asymmetrical backscattering phenomena. This phenomenon opens new ways to overcome current limitations of graphene-based devices through the fabrication of chemically doped graphene nanoribbons with sizes within the reach of conventional lithography.

PMID:: 19530669; [PubMed - indexed for MEDLINE]

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