Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Super fast net just round the corner

Abstract:
What can you get when you combine graphene with metallic nanostructures? Improved harvesting light by graphene, which could potentially lead to super-fast Internet, a new UK study shows. The study, published in the journal Nature Communications, was funded in part by three EU projects: RODIN, GRAPHENE and NANOPOTS. RODIN ('Suspended graphene nanostructures') is backed under the Nanosciences, Nanotechnologies, Materials and new Production Technologies (NMP) Theme of the Seventh Framework Programme (FP7) to the tune of EUR 2.85 million. The GRAPHENE ('Physics and applications of graphene') and NANOPOTS ('Nanotube based polymer optoelectronics') projects have received European Research Council Starting Grants worth EUR 1.78 million and EUR 1.8 million, respectively.

Super fast net just round the corner

Brussels, Belgium | Posted on September 27th, 2011

A team of scientists, which includes Nobel Prize winners Professors Andre Geim and Kostya Novoselov, from the Universities of Manchester and Cambridge in the United Kingdom has pieced together the puzzle that could enhance the characteristics of graphene devices for use as photodetectors in future high-speed optical communications.

Combining graphene with metallic nanostructures triggered a huge enhancement in harvesting light by graphene without losing any speed. Not only would this help accelerate the Internet but other communications would get a boost as well. A key characteristic of graphene devices is that they are very fast, surpassing current Internet cables.

The scientists placed two closely spaced metallic wires on top of graphene and shone light on this structure. Doing this helped generate electric power. According to them, this simple device presents an elementary solar cell.

The biggest challenge for the researchers was dealing with low efficiency. Graphene is the thinnest material across the globe, absorbing just 3% of light. So the remaining light passes through without contributing to electrical power. To get the results they wanted, the team combined graphene with tiny metallic structures arranged on top of graphene.

Plasmonic nanostructures have helped advance the optical electric field felt by graphene and have concentrated light within the carbon layer, which has a thickness of one atom.

'Graphene seems a natural companion for plasmonics,' says Manchester's Dr Alexander Grigorenko. 'We expected that plasmonic nanostructures could improve the efficiency of graphene-based devices but it has come as a pleasant surprise that the improvements can be so dramatic.'

For his part, Professor Novoselov, also from the University of Manchester, says: 'The technology of graphene production matures day-by-day, which has an immediate impact both on the type of exciting physics which we find in this material, and on the feasibility and the range of possible applications. Many leading electronics companies consider graphene for the next generation of devices. This work certainly boosts graphene's chances even further.'

Commenting on the findings, Cambridge's Professor Andrea Ferrari says: 'So far, the main focus of graphene research has been on fundamental physics and electronic devices. These results show its great potential in the fields of photonics and optoelectronics, where the combination of its unique optical and electronic properties with plasmonic nanostructures, can be fully exploited, even in the absence of a bandgap, in a variety of useful devices, such as solar cells and photodetectors.'

####

For more information, please click here

Copyright © European Commission

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 Communications:

University of Manchester:

University of Cambridge:

Related News Press

News and information

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

Graphene/ Graphite

Intertronics introduce new nanoparticle deagglomeration technology March 15th, 2017

Space energy technology restored to make power stations more efficient: Scientists use graphene to reinvent abandoned heat energy converter technology March 7th, 2017

Graphene sheets capture cells efficiently: New method could enable pinpoint diagnostics on individual blood cells March 3rd, 2017

Applied Graphene Materials plc - Significant commercial progress in AGMs three core sectors March 3rd, 2017

Govt.-Legislation/Regulation/Funding/Policy

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

Laser activated gold pyramids could deliver drugs, DNA into cells without harm: Microstructures create temporary pores in cells March 27th, 2017

Cryo-electron microscopy achieves unprecedented resolution using new computational methods March 25th, 2017

Argon is not the 'dope' for metallic hydrogen March 24th, 2017

Discoveries

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

Announcements

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

Photonics/Optics/Lasers

Electro-optical switch transmits data at record-low temperatures: Operating at temperatures near absolute zero, switch could enable significantly faster data processing with lower power consumption March 20th, 2017

AIM Photonics Welcomes Coventor as Newest Member: US-Backed Initiative Taps Process Modeling Specialist to Enable Manufacturing of High-Yield, High-Performance Integrated Photonic Designs March 16th, 2017

Optical fingerprint can reveal pollutants in the air: Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with sensors based on ultra-thin nanomaterials March 15th, 2017

MIPT physicists predict the existence of unusual optical composites March 10th, 2017

Research partnerships

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

ATTOPSEMI Technology Joins FDXcelerator Program to Deliver Advanced Non-Volatile Memory IP to GLOBALFOUNDRIES 22 FDX Technology Platform: Leading-edge I-fuse brings higher reliability, smaller cell size and ease of programmability for consumer, automotive, and IoT applications March 27th, 2017

Leti and HORIBA Scientific to Host Webinar on Ultrafast Characterization Tool: Plasma Profiling Time-of-Flight Mass Spectrometer Tool Cuts Optimization Time In Layer Deposition and Fabrication of Wide Range of Applications March 27th, 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