Graphene - Wikipedia
Graphene / ˈ ɡ r æ f iː n / is a form of carbon consisting of a single layer of atoms arranged in two-dimensional honeycomb lattice. The name is a contraction of "graphite" and the suffix -ene, reflecting the fact that the graphite allotrope of carbon consists of stacked graphene layers.. Each atom in a graphene sheet is connected to its three nearest neighbors by a σ-bond, and ...