With ‘ribbons’ of graphene, width matters: A narrow enough ribbon will transform a high-performance conductor into a semiconductor

Using graphene ribbons of unimaginably small widths — just several atoms across — a group of researchers has found a novel way to “tune” the wonder material, causing the extremely efficient conductor of electricity to act as a semiconductor. In principle, their method for producing these narrow ribbons — at a width roughly equal to the diameter of a strand of human DNA — and manipulating the ribbons’ electrical conductivity could be used to produce nano-devices.

from Physics News — ScienceDaily http://ift.tt/1kkzkl5

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