With its potential for superfast processing speeds, graphene has long been heralded as a key component in the supercomputers of the future. But the problem with making transistors out of the stuff is finding a way to turn them off.
Now however, a new type of design suggests that simply creating "U" bends in it could do the trick.
Graphene is the thinnest material known, made up of sheets of carbon arranged in a honeycomb structure just a single atom thick. This structure allows electrons to pass through it faster than most other materials, making it an ideal candidate from which to make electronic devices like transistors, says Zakaria Moktadir at the Nano Research Group at the University of Southampton, UK.
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