IBM: Tiny carbon nanotube transistor outshines silicon | Cutting Edge - CNET News:
In a research paper published this month in Nano Letters, IBM researchers found that carbon nanotube transistors smaller than 10 nanometers outperformed silicon devices. These transistors also operate at very low voltage, which means they promise processors that operate with low power consumption.
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Drawing of components in a carbon nanotube transistor.
(Credit: IBM)
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The experiments researchers performed were designed to test the theoretic performance of carbon nanotube transistors, rather than develop new manufacturing processes. But the finding could be significant in the ongoing pursuit of smaller transistors for more computing power.
Carbon nanotubes are hollow cylinder shaped structures made of connected carbon atoms that have been touted for years as a potential semiconductor material. Producing carbon nanotubes at scale is one technical challenge to developing computing devices with them. The overwhelming weight of the semiconductor industry infrastructure is based on silicon as well, making introduction of new materials difficult.
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