Hi.
This just made my day. Me thinks theres still more to our developement than meets the eye.
Processors and microcircuits producers
constantly decrease the sizes of transistors with passage to new
technological standards, but in some stage , the semiconductor industry
use other materials instead of silicon, when some materials reach
its physical limit.
Scientists consider that approximately to 2025 , silicon can be
removed and grafen will take its place ( layer of carbon with one atom
thickness) . Silicic transistors lose stability with sizes less than 10
nm, and grafen transistors can preserve stability properties, and even
improve them, with sizes less than 1 nm. For researchers it is already possible to place on one microcircuit
, hundreds of grafen transistors, but the practical introduction of this
technology will take more than one year. Electrons penetrate grafen and
create a small quantity of heat. Possessing high thermal conductivity,
grafen is capable to rapidly remove heat. Theoretically, these and other
factors must allow grafen transistors to work at frequencies in several
terahertz. But here we note that grafen is not ready to replace silicic
transistors in microprocessors, since it does not possess the ability to
change the state of conductivity to the state of low conductivity, this
is necessary to up-to-date transistors for work. IBM and Intel are already interested in developments of this region.
Intel finances the activity of scientists from technological university
Georgia, and in the case of successful development it plans to use
grafen transistors in its future products.
***
A thin flake of ordinary carbon, just one atom thick, lies behind this
year's Nobel Prize in Physics. Andre Geim and Konstantin Novoselov have
shown that carbon in such a flat form has exceptional properties that
originate from the remarkable world of quantum physics.
Graphene is a form of carbon. As a material it is completely new -
not only the thinnest ever but also the strongest. As a conductor of
electricity it performs as well as copper. As a conductor of heat it
outperforms all other known materials. It is almost completely
transparent, yet so dense that not even helium, the smallest gas atom,
can pass through it. Carbon, the basis of all known life on earth, has
surprised us once again.
Geim and Novoselov extracted the graphene from a piece of graphite
such as is found in ordinary pencils. Using regular adhesive tape they
managed to obtain a flake of carbon with a thickness of just one atom.
This at a time when many believed it was impossible for such thin
crystalline materials to be stable.
So, any thoughts? How soon do you think we will see some real impact on everyday platform, pc and consoles, game industry in general?
Grafen.
Débuté par
hangmans tree
, oct. 06 2010 07:21
#1
Posté 06 octobre 2010 - 07:21





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