Highly-ordered graphene for two dimensional electronics

Details Highly-ordered graphene for two dimensional electronics Highly-ordered graphene for two dimensional electronics

2006-04-07

arxiv.org/abs/cond-mat/0604206v1

Physics

Condensed Matter

Materials Science

Submitted to Appl. Phys. Lett

Scientific paper

10.1063/1.2358299

With expanding interest in graphene-based electronics, it is crucial that high quality graphene films be grown. Sublimation of Si from the 4H-SiC(0001) Si-terminated) surface in ultrahigh vacuum is a demonstrated method to produce epitaxial graphene sheets on a semiconductor. In this paper we show that graphene grown from the SiC$(000\bar{1})$ (C-terminated) surface are of higher quality than those previously grown on SiC(0001). Graphene grown on the C-face can have structural domain sizes more than three times larger than those grown on the Si-face while at the same time reducing SiC substrate disorder from sublimation by an order of magnitude.

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