"As we approach the ultimate limits of Moore’s Law, however, silicon will have to be replaced in order to miniaturize further," said Jeffrey Bokor, of Lawrence Berkeley National Laboratory and the University of California, Berkeley.
To this end, carbon nanotubes are a significant departure from traditional silicon technologies and a promising path to solving the challenge of energy efficiency in computer circuits. Carbon nanotubes are cylindrical nanostructures of carbon with exceptional electrical, thermal and mechanical properties. Nanotube circuits could provide an order-of-magnitude improvement in energy efficiency over traditional silicon technology.
Stubborn challenges:
These high-quality, robust nanotube circuits are immune to the stubborn and crippling material flaws that have stumped researchers for over a decade, a difficult hurdle that has prevented the wider adoption of nanotube circuits in industry. The advance represents a major milestone toward what researchers call "very-large scale integrated systems" based on nanotubes.
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