Bojan (& others):
Here you go … a couple of updates on Graphene Technologies:
Graphene single-transistor amplifier is a first, Oct 21st:
Quote:
Researchers from the University of California – Riverside and Rice University have made the first single-transistor amplifier from graphene. The device is better than conventional amplifiers thanks to the "ambipolar" nature of graphene, which means that it could find use in wireless and audio applications. It might also be used to design simpler analogue circuits for communications.
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The team now plans to employ more advanced top-gate transistors, which will allow for higher gain because of the much smaller gate thickness. Balandin and Mohanram's group has already built such transistors with low flicker noise, something that is crucial for graphene transistors in any analogue and communication application. "Now we have to put them to work in amplifiers," added Balandin.
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and then (Sept 23rd) ..
Graphene makes 'supercapacitor'
Quote:
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… develop(ed) the first DLC that contains vertically oriented high-surface-area graphene electrodes that aren't porous at all. The device pushes the operating frequency of an electric double layer capacitor to well beyond 5000 Hz, which is a factor of 105 better than commercial DLCs. What's more, it is six times smaller than low-voltage aluminium electrolytic capacitors and can be charged and discharged at high efficiency in times much shorter than 1 ms.
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Graphene is also very closely related to the 'BuckeyBalls' (found in space this year .. that's just for the Astronomers out there
)
Cheers