Evolution of the Copper Foil and Graphene Crystallization (IMAGE)

Institute for Basic Science

Evolution of the Copper Foil and Graphene Crystallization

Caption

Using a new technique scientists obtained a single-crystal copper Cu(111) nucleus at the tapered end of the foil which gradually expanded to the full length of the foil in several minutes (b). This single-crystal copper foil was used as a substrate to grow graphene on its surface. The process of graphene crystallization started with small hexagonal islands of graphene crystals, which grew to cover the entire surface (c, from left to right). The dashed purple lines (c) show that the hexagonal graphene islands are parallel to each other: a key aspect for the success of the crystallization process.

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IBS, Peking University

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