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July 22nd, 2010
Building Super-Fast Electronics Components
Abstract:
For years, researchers have touted graphene as the magic material for the next generation of high-speed electronics, but so far it hasn't proved practical. Now a new way of making nanoscale strips of carbon--the building block of graphene--could kick-start a shift toward superfast graphene components.
The new method, which involves building from the molecular scale up, comes from researchers at the Max Planck Institute for Polymer Research in Switzerland. With atomic-level precision, the researchers made graphene nanoribbons about a nanometer wide.
The Swiss team fabricated these skinny graphene strips by triggering molecular-scale chemical reactions on sheets of heated gold. This let the team precisely control the width of the nanoribbons and the shape of their edge. Molecules were arranged into long fibers on the gold surface. When that surface was heated, adjacent strings linked and fused to form ribbon structures about one nanometer across, with a uniform zigzag edge.
Source:
technologyreview.com
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