Graphene production. Artwork showing a carbon nanotube (left) unzipping to form a flat graphene ribbon. Graphene is composed of a single layer of carbon atoms arranged in a honeycomb crystal lattice. It is both flexible and very strong and conducts electrons faster than silicon. It could one day replace silicon in applications such as nanometre (billionths of a metre) sized electronics, cheap and efficient solar panels, transparent display coatings and miniature sensors. Graphene was discovered by Andre Geim in 2004.
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