Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

News and information

Bringing the atomic world into full color: Researchers turn atomic force microscope measurements into color images October 19th, 2017

'Find the Lady' in the quantum world: International team of researchers presents method for quantum-mechanical swapping of positions October 18th, 2017

Long nanotubes make strong fibers: Rice University researchers advance characterization, purification of nanotube wires and films October 17th, 2017

Spinning strands hint at folding dynamics: Rice University lab uses magnetic beads to model microscopic proteins, polymers October 17th, 2017

Graphene/ Graphite

Graphene forged into three-dimensional shapes September 26th, 2017

New quantum phenomena in graphene superlattices September 18th, 2017

Graphene based terahertz absorbers: Printable graphene inks enable ultrafast lasers in the terahertz range September 13th, 2017

Ames Laboratory scientists move graphene closer to transistor applications August 30th, 2017

Chip Technology

Bringing the atomic world into full color: Researchers turn atomic force microscope measurements into color images October 19th, 2017

Spin current detection in quantum materials unlocks potential for alternative electronics October 15th, 2017

Quantum manipulation power for quantum information processing gets a boost: Improving the efficiency of quantum heat engines involves reducing the number of photons in a cavity, ultimately impacting quantum manipulation power October 14th, 2017

Injecting electrons jolts 2-D structure into new atomic pattern: Berkeley Lab study is first to show potential of energy-efficient next-gen electronic memory October 13th, 2017

Nanoelectronics

Nanometrics Announces Preliminary Results for the Third Quarter of 2017: Quarterly Results Impacted by Delays in Revenue Recognition on Multiple Systems into Japan October 12th, 2017

Seeing the next dimension of computer chips: Researchers image perfectly smooth side-surfaces of 3-D silicon crystals with a scanning tunneling microscope, paving the way for smaller and faster computing devices October 11th, 2017

Columbia engineers invent breakthrough millimeter-wave circulator IC October 6th, 2017

Tungsten offers nano-interconnects a path of least resistance: Crystalline tungsten shows insight and promise in addressing the challenges of electrical interconnects that have high resistivity at the nanoscale October 4th, 2017

Announcements

Bringing the atomic world into full color: Researchers turn atomic force microscope measurements into color images October 19th, 2017

Long nanotubes make strong fibers: Rice University researchers advance characterization, purification of nanotube wires and films October 17th, 2017

Spinning strands hint at folding dynamics: Rice University lab uses magnetic beads to model microscopic proteins, polymers October 17th, 2017

Rice U. study: Vibrating nanoparticles interact: Placing nanodisks in groups can change their vibrational frequencies October 16th, 2017

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