Hi all,

This will lead to far smaller, far fast smartphones, pads and computers.

Take care,

Jay

I.B.M. Researchers Create High-Speed Graphene Circuits

By JOHN MARKOFF,June 9, 2011

http://www.nytimes.com/2011/06/10/te...gewanted=print

I.B.M. researchers said Thursday that they had designed high-speed circuits from graphene, an ultra-thin material that has a host of promising applications, from high-bandwidth communication to a new generation of low-cost smartphone and television displays.

The I.B.M. advance, which the researchers reported in the journal Science, is a circuit known as a broadband frequency mixer that was built on a wafer of silicon. Widely used in all kinds of communications products, the circuits shift signals from one frequency to another.

In the Science paper, the I.B.M. researchers describe a demonstration in which they deposited several layers of graphene on a silicon wafer, then created circuits based on graphene transistors and components known as inductors. They demonstrated frequency mixing up to speeds of 10 gigahertz.