Graphene-based transistors on the way?
The idea of replacing silicon with carbon to make computer chips is not new. However, using graphene -- a single layer of carbon atoms arranged in a honeycomb lattice -- wasn't feasible because it is not possible today to make wafers as big as ones made from silicon. But two researchers from Princeton University have found a very elegant solution to this problem. They've decided to put small crystals of graphene only in the active areas of the computer chip. Their graphene-based transistors are already '10 times faster than silicon transistors in moving electronic holes -- a key measure of speed.' This technique could be applied to wireless communication devices within a few years.