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July 13th, 2010
One-step Process for Creating Nanocircuits from Graphene Reported
Abstract:
The researchers from Georgia Tech, the U.S. Naval Research Laboratory and the University of Illinois at Urbana-Champaign were partly inspired by the understanding that on the macroscale when graphene oxide is put into furnaces its properties can be changed from being an insulating material to a ore conductive graphene-like material. With this knowledge the researchers discovered that reduced graphene oxide started to become more conductive at 130 degrees Celsius.
In an article available on the Navy Research Laboratory's website, Georgia Institute of Technology physicist Elisa Riedo notes, "We've shown that by locally heating insulating graphene oxide, both the flakes and epitaxial varieties, with an atomic force microscope tip, we can write nanowires with dimensions down to 12 nanometers. And we can tune their electronic properties to be up to four orders of magnitude more conductive. We've seen no sign of tip wear or sample tearing."
Source:
ieee.org
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