CHAMPAIGN, Ill. Carbon nanotubes have a sound future in the electronics industry, say researchers who built the worlds first all-nanotube transistor radios to prove it.
The nanotube radios, in which nanotube devices provide all of the active functionality in the devices, represent important first steps toward the practical implementation of carbon-nanotube materials into high-speed analog electronics and other related applications, said John Rogers, a Founder Professor of Materials Science and Engineering at the University of Illinois.
Rogers is a corresponding author of a paper that describes the design, fabrication and performance of the nanotube-transistor radios, which were achieved in a close collaboration with radio frequency electronics engineers at Northrop Grumman Electronics Systems in Linthicum, Md.
The paper has been accepted for publication in the Proceedings of the National Academy of Sciences, and is to be published in PNAS Online Early Edition next week.
These results indicate that nanotubes might have an important role to play in high-speed analog electronics, where benchmarking studies against silicon indicate significant advantages in comparably scaled devices, together with capabilities that might complement compound semiconductors, said Rogers, who also is a researcher at the Beckman Institute and at the universitys Frederick Seitz Materials Research Laboratory.
Practical nanotube devices and circuits are now possible, thanks to a novel growth technique developed by Rogers and colleagues at the U. of I., Lehigh and Purdue universities, and described last year in the journal Nature Nanotechnology.
The growth technique produces linear, horizontally aligned arrays of hundreds of thousands of carbon nanotubes that function collectively as a thin-film semiconductor material in which charge moves independently through each of the nanotubes. The arrays can be integrated into electronic devices and circuits by conventiona
|Contact: James E. Kloeppel|
University of Illinois at Urbana-Champaign