Bilayer graphene gets a bandgap

A tunable graphene bandgap opens the way to nanoelectronics and nanophotonics

		IMAGE: On the left, a microscope image looking down through the bilayer-graphene field-effect transistor. The diagram on the right identifies the elements. Click here for more information.

BERKELEY, CA – Graphene is the two-dimensional crystalline form of carbon, whose extraordinary electron mobility and other unique features hold great promise for nanoscale electronics and photonics. But there's a catch: graphene has no bandgap.