Ars Technica: An innovative process to create basic electronic
circuits from nanomaterials has been devised by a team of
researchers at Cornell University led by Mark Levendorf.
“Patterned regrowth” involves creating a layer of graphene,
removing sections of the material, and then applying another
layer, of either boron nitrate (BN) or doped graphene. The
second layer fills in the areas where material was removed and
acts as an insulator, effectively turning the original layer of
graphene, which is a conductive material, into a pattern of
wires. The researchers view the resulting circuit as the first
step toward one-atom-thick integrated circuits that could be
incorporated into flexible and transparent materials. Achieving
that goal will entail finding a suitable semiconductor.