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

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Graphene/ Graphite

Researchers design one of the strongest, lightest materials known: Porous, 3-D forms of graphene developed at MIT can be 10 times as strong as steel but much lighter January 7th, 2017

Nano-chimneys can cool circuits: Rice University scientists calculate tweaks to graphene would form phonon-friendly cones January 4th, 2017

First use of graphene to detect cancer cells: System able to detect activity level of single interfaced cell December 20th, 2016

New graphene-based system could help us see electrical signaling in heart and nerve cells: Berkeley-Stanford team creates a system to visualize faint electric fields December 19th, 2016

Govt.-Legislation/Regulation/Funding/Policy

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

'5-D protein fingerprinting' could give insights into Alzheimer's, Parkinson's January 19th, 2017

Strength of hair inspires new materials for body armor January 18th, 2017

Self-assembling particles brighten future of LED lighting January 18th, 2017

Discoveries

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Announcements

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

Photonics/Optics/Lasers

Recreating conditions inside stars with compact lasers: Scientists offer a new path to creating the extreme conditions found in stars, using ultra-short laser pulses irradiating nanowires January 12th, 2017

New laser based on unusual physics phenomenon could improve telecommunications, computing January 12th, 2017

Researcher's discovery of new crystal structure holds promise for optoelectronic devices January 6th, 2017

The researchers created a tiny laser using nanoparticles January 5th, 2017

Research partnerships

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

Chemistry on the edge: Experiments at Berkeley Lab confirm that structural defects at the periphery are key in catalyst function January 13th, 2017

Recreating conditions inside stars with compact lasers: Scientists offer a new path to creating the extreme conditions found in stars, using ultra-short laser pulses irradiating nanowires January 12th, 2017

Zeroing in on the true nature of fluids within nanocapillaries: While exploring the behavior of fluids at the nanoscale, a group of researchers at the French National Center for Scientific Research discovered a peculiar state of fluid mixtures contained in microscopic channels January 11th, 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