Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

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

Searching for a nanotech self-organizing principle May 1st, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Govt.-Legislation/Regulation/Funding/Policy

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Chip Technology

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Researchers create a first frequency comb of time-bin entangled qubits: Discovery is a significant step toward multi-channel quantum communication and higher capacity quantum computers April 28th, 2016

NREL theory establishes a path to high-performance 2-D semiconductor devices April 27th, 2016

Nanotubes/Buckyballs/Fullerenes

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Researchers create artificial protein to control assembly of buckyballs April 27th, 2016

Cleaning up hybrid battery electrodes improves capacity and lifespan: New way of building supercapacitor-battery electrodes eliminates interference from inactive components April 22nd, 2016

Discoveries

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Announcements

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

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

Searching for a nanotech self-organizing principle May 1st, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Military

Nanograft seeded with 3 cell types promotes blood vessel formation to speed wound healing April 27th, 2016

The light stuff: A brand-new way to produce electron spin currents - Colorado State University physicists are the first to demonstrate using non-polarized light to produce a spin voltage in a metal April 26th, 2016

NRL reveals novel uniform coating process of p-ALD April 21st, 2016

Team builds first quantum cascade laser on silicon: Eliminates the need for an external light source for mid-infrared silicon photonic devices or photonic circuits April 21st, 2016

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







Car Brands
Buy website traffic