Definition of "graphene" []

• Any polycyclic aromatic hydrocarbon having the structure of part of a layer of graphite. (noun)
• An arbitrarily large-scale, one-atom-thick layer of graphite, an allotrope of carbon, that has remarkable electric characteristics. (noun)

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• "A single carbon layer of the graphitic structure can be considered as the final member of the series naphthalene, anthracene, coronene, etc. and the term graphene should therefore be used to designate the individual carbon layers in graphite intercalation compounds."
• "Here, we report the production of a new graphene nanostructure-which we call a graphene nanomesh-that can open up a bandgap in a large sheet of graphene to create a semiconducting thin film."
• "The term graphene should be used only when the reactions, structural relations or other properties of individual layers are discussed. ""