A sheet of graphene
One atom-thick honeycomb of sp² carbons; rotate to see it is perfectly flat. Every carbon contributes one pz electron to a delocalized π sheet — the origin of graphene’s conductivity and its near-transparency (≈2.3 % absorption).
One atom-thick honeycomb of sp² carbons; rotate to see it is perfectly flat. Every carbon contributes one pz electron to a delocalized π sheet — the origin of graphene’s conductivity and its near-transparency (≈2.3 % absorption).