Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Next-generation transistor outperforms other carbon-based designs

Chongwu Zhou, corresponding author of a paper about the transistor that was published online by ACS Nano
Chongwu Zhou, corresponding author of a paper about the transistor that was published online by ACS Nano

Abstract:
A team of engineers from USC has constructed the highest-performing carbon nanotube transistor to date.

Next-generation transistor outperforms other carbon-based designs

Los Angeles, CA | Posted on May 7th, 2013

Next-generation transistor outperforms other carbon-based designs

By Robert Perkins
May 7, 2013

A team of engineers from USC has constructed the highest-performing carbon nanotube transistor to date.

Transistors are semiconductor switches and amplifiers that are key components of almost all electronic devices, from radios to cellphones to computers.

The new carbon nanotube transistor has an extrinsic performance — the limit of its practical, usable operating frequency — of 25 Gigahertz (GHz). By comparison, its closest competitor, built by the Institut d'Électronique de Microélectronique et de Nanotechnologie, peaks at 15 GHz.

"Carbon nanotubes have unique properties and great potential in advanced electronic application," said Chongwu Zhou, professor at the USC Viterbi School of Engineering and corresponding author of a paper about the transistor that was published online by ACS Nano on April 16. "This is the very first report of analog circuits based on self-aligned nanotube array transistors operated in the gigahertz regime.

"The characterization of nanotube transistor-based analog circuits is of great importance for further exploring the potential of nanotubes in high-frequency applications with fast speed and low-power consumption requirement," he added.

Zhou led a team that included USC PhD students Yuchi Che, Yuncheng Lin and Pyo Jae Kim.

The new transistor takes advantage of a new T-shaped design that is a mere 200 nanometers wide. The design helps reduce parasitic effects on the transistor's performance and boosts the speed of the transistor's response by scaling down its channel length. Zhou and his team recently patented the design.

Scientists have long eyed carbon nanotubes as a replacement for silicon semiconductors in commercial electronics because carbon has superior electrical properties and can be used to build smaller transistors.

Though current carbon nanotube-based designs come nowhere near the older silicon technology — which can perform at around 500 GHz — they have the potential, theoretically, to reach 1,000 GHz frequency performance.

"It is a significant step toward the practical application of carbon nanotube RF transistor as a promising candidate for next-generation electronics," said Che, lead author of the ACS Nano paper.

Zhou and his research group continue to work on optimizing carbon nanotube-based analog electronics. Their final goal is to generate carbon nanotube transistors and circuits that offer superior performance to traditional industrial technology.

This research as funded by the Joint KACST/California Center of Excellence and the Office of Naval Research (ONR).

####

For more information, please click here

Contacts:
Robert Perkins
(213) 740-9226

Copyright © University of Southern California

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Nano Ruffles in Brain Matter: Freiburg researchers decipher the role of nanostructures around brain cells in central nervous system function October 31st, 2014

Gold nanoparticle chains confine light to the nanoscale October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

Govt.-Legislation/Regulation/Funding/Policy

Gold nanoparticle chains confine light to the nanoscale October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

'Electronic skin' could improve early breast cancer detection October 29th, 2014

Chip Technology

Sussex physicists find simple solution for quantum technology challenge October 28th, 2014

Watching the hidden life of materials: Ultrafast electron diffraction experiments open a new window on the microscopic world October 27th, 2014

Breakthrough in molecular electronics paves the way for DNA-based computer circuits in the future: DNA-based programmable circuits could be more sophisticated, cheaper and simpler to make October 27th, 2014

QuantumWise guides the semiconductor industry towards the atomic scale October 24th, 2014

Nanotubes/Buckyballs

Tiny carbon nanotube pores make big impact October 29th, 2014

Materials for the next generation of electronics and photovoltaics: MacArthur Fellow develops new uses for carbon nanotubes October 21st, 2014

Special UO microscope captures defects in nanotubes: University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices October 21st, 2014

Imaging electric charge propagating along microbial nanowires October 20th, 2014

Discoveries

Nano Ruffles in Brain Matter: Freiburg researchers decipher the role of nanostructures around brain cells in central nervous system function October 31st, 2014

Gold nanoparticle chains confine light to the nanoscale October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

Announcements

Nano Ruffles in Brain Matter: Freiburg researchers decipher the role of nanostructures around brain cells in central nervous system function October 31st, 2014

Gold nanoparticle chains confine light to the nanoscale October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals

Nano Ruffles in Brain Matter: Freiburg researchers decipher the role of nanostructures around brain cells in central nervous system function October 31st, 2014

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Device invented at Johns Hopkins provides up-close look at cancer on the move: Microscopic view of metastasis could give insight about how to keep cancer in check October 31st, 2014

Production of Biocompatible Polymers in Iran October 30th, 2014

Military

'Nanomotor lithography' answers call for affordable, simpler device manufacturing October 31st, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Breakthrough in molecular electronics paves the way for DNA-based computer circuits in the future: DNA-based programmable circuits could be more sophisticated, cheaper and simpler to make October 27th, 2014

NanoTechnology for Defense (NT4D) October 22nd, 2014

NanoNews-Digest
The latest news from around the world, FREE





  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE