Scientists identify hundreds of atomically-thin materials

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Enlarge / Molybdenum disulfide, one of the 2D materials we knew about. (credit: NC State ) Graphene may seem like a modern wonder-material, but it’s been with us for ages in the form of graphite. Graphene is a sheet of carbon atoms bonded to each other, just one atom thick; graphite is just an agglomeration of these sheets layered on top of each other. To study graphene, however, it took someone clever to devise a way of peeling single layers off from this agglomeration (the secret turned out to be a piece of tape). Since then, we’ve identified a handful of additional chemicals that form sheets that are a few atoms thick. These have a variety of properties—some are semiconductors and have been combined with graphene to make electronic devices . To expand the range of device we can craft that build on the advantages of these atomically thin materials, a larger catalog of chemicals like this would be handy. Now, a Lithuanian-Swiss team says it’s done just that. The team has found materials just like graphite: a bulk material with atomically thin layers hidden inside. Read 8 remaining paragraphs | Comments

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Scientists identify hundreds of atomically-thin materials

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