Graphene vs Silicon

[maazster]

Why is graphene the future? What advantages does it have against Silicon and also what are the disadvantages of Graphene compared to Silicon.

[Fred Castellum]

I can't pull anything off the top of my head now but this article here: http://www.paristechreview.com/2013/09/30/graphene-replace-silicon/

 

Has great info on the Silicon vs Graphene topic. 

[TheDigitalRealm]

Graphene has a cacophony of different uses. I don't know the specifics about its advantages, but the main disadvantages have been on the manufacturing end, and trying to apply it to make a practical product, like a CPU.

[Stefano]

The electrical resistance of graphene is waaaaaaaaaaaay smaller than that of silicone, close to that of a superconducter. And were reaching the smallest phisical size that a transistor can reach.

[maazster]

The electrical resistance of graphene is waaaaaaaaaaaay smaller than that of silicone, close to that of a superconducter. And were reaching the smallest phisical size that a transistor can reach.

So graphene transistors can be made on a smaller lithography process?

[Stefano]

So graphene transistors can be made on a smaller lithography process?

Different process and it is all theoretical at this stage, as no one has made one yet.

[JLCitadel]

Different process and it is all theoretical at this stage, as no one has made one yet.

 

Why, if it's there, why has no one made one?

[KemoKa]

Why, if it's there, why has no one made one?

Actually, IBM made one a while back but it didn't work out so well.

[bob345]

the main problem with graphene is that it is not a natural semi conductor. Along with there being no cost effective way yet of manufacturing graphene transistors.

[Recon-UK]

Cannot say i have ever tried me silicon breasts.

[Recon-UK]

Researchers have calculated that by stacking six layers – three graphene layers and three layers of molybdenum disulfide – performance could theoretically reach 10%… for a thickness of only 3 nanometers. Unprecedented energy efficiency! Should such a minute graphene solar cell get to be manufactured on an industrial scale, it would beat all records in terms of power density. It is nevertheless true that at this stage, such a revolutionary cell remains purely theoretical: it has not even been tested in the laboratory.

[Redheadsrule13]

I do believe that graphene is a superior material, but it's just been too damn hard to produce it in the correct form and on a large production scale. Although now we have had a breakthrough on the production side meaning that soon enough it'll be implemented far more readily, something about using a kitchen blender or something similar, I just remember it being really a really strange discovery.

[jmaster299]

Why is graphene the future? What advantages does it have against Silicon and also what are the disadvantages of Graphene compared to Silicon.

We are rapidly approaching the theoretical limit of silicon dies. Skylane will be using a die size of 14nm, take the time to consider how tiny that is. There are 10,000,000 nanometers in a single centimeter, the manufacturing process on that small of a level is becoming exponentially more and more expensive. Graphene on the other hand is naturally manufactured on the atomic level, at a thickness of just a single atom. Meaning that it's produced at a size that is smaller than it's application process, the complete opposite of silicon applications. That manufacturing process for graphene is also extremely expensive, but there is a massive amount of work being done to reduce the production cost and increase production volumes.

With graphene, they will be able to produce smaller CPUs that are both more powerful in terms of performance and require less electrical energy in order to operate. When you reduce the amount of electrical energy required, you also by default reduce the amount of waste heat produced by the CPU. For small form factor applications, like tablets and cellphones, that means even smaller and/or thinner devices that have more computing power, but they will use less battery life and will not have to worry about overheating. In a large form factor, like a PC, CPUs and GPUs will be able to offer massive gains in terms of performance, but require less cooling than current offerings.

[maazster]

Cannot say i have ever tried me silicon breasts.

You mean Silicone?

[Recon-UK]

You mean Silicone?

Damnnit TMI makes no difference to me mang