Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Scientists researching graphene stumble upon surprising result

Abstract:
Researchers from the United Kingdom have uncovered an unexpected characteristic of graphene by demonstrating a method that uses graphene as a building block to create new three-dimensional (3D) crystal structures which are not confined by what nature can produce.

Scientists researching graphene stumble upon surprising result

Manchester, UK | Posted on July 30th, 2012

Set out in the journal Nature Materials, their method involves sandwiching individual graphene sheets between insulating layers in order to produce electrical devices with unique new properties.

The hope is that this new method will open up a whole new dimension of physics research.

Graphene is a 2D material consisting of a single layer of carbon atoms arranged in a honeycomb or chicken wire structure. It is the thinnest material in the world and yet is also one of the strongest. It conducts electricity as efficiently as copper and outperforms all other materials as a conductor of heat.

The scientists proved that a new side-view imaging technique can be used to visualise the individual atomic layers of graphene within the devices they have built. They found that the structures were almost perfect even when more than 10 different layers were used to build the stack.

This development further proves graphene's suitability as a major component in the next generation of computer chips.

The researchers' side-view imaging approach works by first extracting a thin slice from the centre of the device. The team likens this to cutting through a rock to reveal the geological layers or slicing into a chocolate cake to reveal the individual layers of icing.

The scientists used a beam of ions to cut into the surface of the graphene and dig a trench on either side of the section they wanted to isolate. They then removed a thin slice of the device.

Lead study author Dr Sarah Haigh, from the University of Manchester, comments: 'Our slices are only around 100 atoms thick and this allows us to visualise the individual atomic layers of graphene in projection.

'We have found that the observed roughness of the graphene is correlated with their conductivity. Of course we have to make all our electrical measurements before cutting into the device. We were also able to observe that the layers were perfectly clean and that any debris left over from production segregated into isolated pockets and so did not affect device performance. We plan to use this new side view imaging approach to improve the performance of our graphene devices.'

Two of the study researchers, Andre Geim and Konstantin Novoselov, both from the University of Manchester, were awarded the Nobel Prize in Physics in 2010 for their 'groundbreaking experiments regarding the two-dimensional material graphene'.

####

For more information, please click here

Copyright © Cordis

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

Graphene/ Graphite

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

News and information

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Nanometrics to Participate in the 6th Annual NYC Investor Summit 2017 November 16th, 2017

Nanometrics Announces $50 Million Share Repurchase Program November 15th, 2017

Imaging

The stacked color sensor: True colors meet minimization November 16th, 2017

Chip Technology

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Nanometrics to Participate in the 6th Annual NYC Investor Summit 2017 November 16th, 2017

GLOBALFOUNDRIES Demonstrates Industry-Leading 112G Technology for Next-Generation Connectivity Solutions: High bandwidth, low power SerDes IP portfolio enables ‘connected intelligence’ in data centers and networking applications November 15th, 2017

Nanometrics Announces $50 Million Share Repurchase Program November 15th, 2017

Discoveries

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Counterfeits and product piracy can be prevented by security features, such as printed 3-D microstructures: Forgeries and product piracy are detrimental to society and industry -- 3-D microstructures can increase security -- KIT researchers develop innovative fluorescent 3-D stru November 15th, 2017

Announcements

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Nanometrics to Participate in the 6th Annual NYC Investor Summit 2017 November 16th, 2017

Grants/Sponsored Research/Awards/Scholarships/Gifts/Contests/Honors/Records

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

Oxford Instruments announces winner of the 2017 Sir Martin Wood Prize for Japan November 14th, 2017

A new way to mix oil and water: Condensation-based method developed at MIT could create stable nanoscale emulsions November 8th, 2017

Nanoshells could deliver more chemo with fewer side effects: In vitro study verifies method for remotely triggering release of cancer drugs November 8th, 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