After all, they are both composed entirely of carbon atoms. The main difference between pencil lead and the sparkling gem, which are allotypes (different forms) of carbon atoms, lies in how these ...

Researchers have revealed new insights into rhombohedral stacking in graphene, reporting on how it behaves as a semiconductor ...

Pencil lead, or graphite, is composed of graphene, a single layer of carbon atoms arranged in hexagons resembling a honeycomb structure. Rhombohedral pentalayer graphene is composed of five layers ...