Quantum Carbon

Quantum Carbon

Author: David Bradley

Rice University scientists have shown theoretically that removing hydrogen atoms at strategic points on a graphene sheet can lead to a form of graphene bearing quantum dots on its surface. Graphene, a semiconductor, is essentially a single sheet of graphite, covered on both sides with valency-filling hydrogen atoms it forms graphene, an insulator.

The calculations suggest that removing “islands” of hydrogen from both sides of a graphane sheet will leave a well. The researchers say this could be exploited in creating arrays of dots for building tiny transistors or semiconductor lasers.


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