Transparent gallium nitride nanotubes made by depositing the semiconducting material on nanowires and then evaporating the nanowires. The tubes are hollow with capped ends. (Credit: Peidong Yang/UC Berkeley)
Nanowires and carbon nanotubes, each with their pluses and minuses, are advertised as the next-generation building blocks for electronic circuits a thousand times smaller than today’s semiconductor circuits.
Peidong Yang, a University of California, Berkeley, chemist, has now fabricated a new type of nanotube, made of gallium nitride, that, he says, "captures some of the great properties from nanowires and carbon nanotubes, and eliminates the not-so-good characteristics of both.
"Each of these - semiconductor nanowires, carbon nanotubes and semiconductor nanotubes - will play a big role in nanocircuits of the future."
Robert Sanders | UCB
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