Friday, April 29, 2011

Graphene, a single layer of carbon atoms, is prized for its remarkable properties Two layers may be better (via

Two graphene layers may be better than one:
"Electronic properties of two layers of graphene vary on the nanometer scale. The surprising new results reveal that not only does the difference in the strength of the electric charges between the two layers vary across the layers, but they also actually reverse in sign to create randomly distributed puddles of alternating positive and negative charges."

Graphene, a single layer of , is prized for its remarkable properties, not the least of which is the way it conducts at high speed. However, the lack of what physicists call a —an energetic threshold that makes it possible to turn a transistor on and off—makes ill-suited for digital electronic applications.

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