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Supercomputing's big problem: What's after silicon?

Patrick Thibodeau | Nov. 20, 2013
With Moore's Law in decline, supercomputing faces a plateau unless a disruptive tech emerges

A carbon nanotube is essentially a rolled-up sheet of grapheme that forms a nanocylinder with a diameter of about one nanometer. You can fit 10,000 carbon nanotubes side-by-side and it would still fit within a single human hair, said Shulaker, who is working at Stanford with Professors Subhasish Mitra and Philip Wong.

This Stanford team synthesized their own nanotubes by taking a quartz wafer and adding iron nanoparticles and then heating it to 1,652 degrees Fahrenheit. The resulting CNTs become the channel for the transistor, which are turning on and off.

"I'm really interested in things like emerging technologies because I want to know if CNTs are going to be able to save us in time," said Gropp.


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