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Bookmark or Share- Physicists discover important new property for grapheneGraphene is composed of a single layer of carbon atoms arranged in hexagons resembling a honeycomb structure. Since the material’s discovery, scientists have shown that different configurations of graphene layers can give rise to a variety of important properties.
- How ‘transparent’ is graphene? - MIT NewsBut the “transparency” of such a graphene coating to wetting — a measure of the degree to which liquids spread out or bead up on a surface — is not as absolute as some researchers had thought. New research at MIT shows that for materials with intermediate wettability, graphene does preserve the properties of the underlying material.
- Insulator or superconductor? Physicists find graphene is bothIn studying the electronic properties in graphene, the team began to play around with simple stacks of graphene sheets. The researchers created two-sheet superlattices by first exfoliating a single flake of graphene from graphite, then carefully picking up half the flake with a glass slide coated with a sticky polymer and an insulating material ...
- A new way to make sheets of graphene - MIT NewsThen carbon is deposited on the surface, where it forms layers of graphene above and beneath the SiO2. The top layer of graphene, attached to the nickel, easily peels away using tape (or, for industrial processes, a layer of adhesive material), leaving behind just the lower layer of graphene stuck to the substrate.
- How can electrons split into fractions of themselves?Each layer of graphene is as thin as a single atom and structured in a chicken-wire lattice of hexagonal carbon atoms. By stacking two sheets at a very specific angle to each other, he found that the resulting interference, or moiré pattern, induced unexpected phenomena such as both superconducting and insulating properties in the same material.
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