Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > New Route To Graphene Devices - Nanoelectronics: Procedure draws on industry-compatible methods and materials

Abstract:
A new strategy for fabricating graphene-based transistors—one that relies on materials and methods compatible with those used in the microelectronics industry—has been developed by researchers at IBM (Nature, DOI: 10.1038/nature09979). The work may lead to commercially viable techniques for manufacturing electronic devices that exploit the unique properties of graphene, a layer of carbon one atom thick.

New Route To Graphene Devices - Nanoelectronics: Procedure draws on industry-compatible methods and materials

Washington, DC | Posted on April 12th, 2011

Graphene's outstanding electronic and other properties have sparked a wave of research aimed at making circuit components based on the ultrathin material. The goal is to use graphene to make circuit elements that are smaller and that outperform today's devices.

With that goal in mind, a number of research teams have incorporated graphene electrodes into radio-frequency (RF) transistors, fast-acting signal amplifiers that play a central role in wireless communication systems. But the graphene electrodes in the fastest of those transistors are prepared by a laborious manual procedure.

Graphene can be prepared more efficiently in larger batches via vapor deposition methods. But those procedures generally call for depositing the film on a layer of silicon dioxide, which adversely affects the electronic performance of graphene devices.

To sidestep those limitations, Yanqing Wu, Yu-ming Lin, Phaedon Avouris, and coworkers at IBM's Thomas J. Watson Research Center developed a vapor deposition method in which graphene ends up on diamond-like carbon, a material well-known to the semiconductor industry with desirable electronic properties. Initial tests show that RF transistors made via the new method operate at very high frequencies and work well even at cryogenic temperatures.

"The approach of the IBM team is very interesting because it is compatible with common semiconductor processing," says Frank Schwierz, a device physicist at the Technical University of Ilmenau, in Germany. At this early stage, before the fabrication method has been optimized, Schwierz is cautious about calling the technique a breakthrough. "But it may turn out to be very useful in the future," he says.

####

For more information, please click here

Copyright © American Chemical Society (ACS)

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 Links

Nature, DOI: 10.1038/nature09979

Related News Press

Graphene/ Graphite

Graphene leans on glass to advance electronics: Scientists' use of common glass to optimize graphene's electronic properties could improve technologies from flat screens to solar cells February 12th, 2016

A metal that behaves like water: Researchers describe new behaviors of graphene February 12th, 2016

News and information

'Lasers rewired': Scientists find a new way to make nanowire lasers: Berkeley Lab, UC Berkeley scientists adapt next-gen solar cell materials for a different purpose February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Chip Technology

A metal that behaves like water: Researchers describe new behaviors of graphene February 12th, 2016

Silicon chip with integrated laser: Light from a nanowire: Nanolaser for information technology February 12th, 2016

Research reveals carbon films can give microchips energy storage capability: International team from Drexel University and Paul Sabatier University reveals versatility of carbon films February 11th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Nanoelectronics

Silicon chip with integrated laser: Light from a nanowire: Nanolaser for information technology February 12th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Spin dynamics in an atomically thin semi-conductor February 1st, 2016

Announcements

Graphene leans on glass to advance electronics: Scientists' use of common glass to optimize graphene's electronic properties could improve technologies from flat screens to solar cells February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 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