Graphene

rich richard.romeo at gmail.com
Thu Jan 10 10:28:34 CST 2013


thanks man

I need a science guy to help me out. I did like the elephant and
pencil analogy. guess graphene replacing silicon is many years away.

rich

On Wed, Jan 9, 2013 at 9:32 PM, Prashant Kumar
<siva.prashant.kumar at gmail.com> wrote:
> For those who don't know, graphene is basically a single-atom thick layer of
> graphite with some very interesting physical properties. Basically, under
> certain conditions, you can force the charge carriers, erstwhile electrons,
> to behave as different kinds of particles, which results in a range of
> physically and technologically interesting phenomena.
>
> I  would argue that, all things considered, graphene is not bleeding edge;
> more properly emerging. It's not a technology in the sense a layman would
> recognise: it's reasonably far away from commercial application. Problem is
> with fabrication of suitable samples. The guys at Manchester who won the
> Nobel in Physics last year used what's now called the "Scotch tape" method.
> You get a sample of graphite and "exfoliate" (read stick it on and then peel
> it off) a layer of graphene. This is one of the most efficient methods
> known. However, graphene in this state is brittle, so there's problems
> scaling up.  Many of the really cool things you can do right now have also
> been demonstrated in other materials.
>
> Graphene electronics proper is I think maybe a decade or so away. Even then
> I think deployment of graphene will be in concert with other tech, most
> exciting of which is perhaps "spintronics". If an electron is spinning
> clockwise, it has spin down, anticlockwise, spin up. The idea is you run
> circuits using spin information. This allows for very interesting circuits,
> where information can flow both ways along a single line. Cool think about
> graphene here is that it exhibits such effects at room temperature, where
> every other material needs superconducting (~1-2K) temperatures, which
> limits commercial utility.
>
> P.
>
> On 8 January 2013 07:00, rich <richard.romeo at gmail.com> wrote:
>>
>> the "new plastic".
>> for those better equipped to explian it would u consider graphene a
>> potential bleeding edge technology?
>
>



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