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Breaking the Silicon Barrier: Graphene Transistors Demonstrated - TechAmok
Breaking the Silicon Barrier: Graphene Transistors Demonstrated - [technology] 06:09 PM EST - Mar,02 2007 - post a comment
Using the world's thinnest material, Graphene,
researchers at the University of Manchester have created the world's smallest
transistor. According to Professor Andre Geim and Dr. Kostya Novoselov from
The School of Physics and Astronomy at The University of Manchester, the new
transistors are only one atom thick and less than 50 atoms wide. The development
opens the gate to superfast computer chips at sizes not possible before with
standard Silicon transistors. Graphene-based circuits, however, are not likely
to be completely ready until 2025.
Graphene, a form of carbon that is only one atom thick, may provide a solid
alternative for even further miniaturization of electronics as silicon-based
technology reaches its limit. Graphene transistors were originally created two
years ago, but at that time they were very "leaky" meaning current could not be
turned off to zero. The "leaky" quality of the transistors effectively limited
their uses, and rendered them useless for employment in computer chips and
electronic circuits. But over the course of the past two years the research team
at the University of Manchester was able to overcome this problem, and have
created fully-functional and stable Graphene transistors. Graphene transistors
remain stable and conductive even when they are only a few nanometers wide. This
is in contrast to all other known materials, including the dominant silicon,
which "oxidize, decompose and become unstable at sizes ten times larger." This
is the barrier that current silicon-based technology is approaching and is
likely to also be its downfall.
Hah. Skynet will be here soon. All we need to work on is amorphous metal construction for our robot masters :-D |
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