Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Research to probe deep within a solar cell

Abstract:
Engineers and scientists from the University of Sheffield have pioneered a new technique to analyse PCBM, a material used in polymer photovoltaic cells, obtaining details of the structure of the material which will be vital to improving the cell's efficiency. The findings are published in Applied Physics Letters.

Research to probe deep within a solar cell

Sheffield, UK | Posted on February 25th, 2013

Working with the ISIS pulsed neutron and muon source at the Science and Technology Facilities Council Rutherford Appleton Laboratory, the researchers are the first to use a cutting-edge neutron scattering technique called SERGIS to analyse PCBM. The technique - still very much in development - has so far only been tested on samples with well-known, regular structures, such as diffraction gratings.

The experiment focused on crystallites of PCBM which were on the surface of a thin film of the solar cell material as the researchers could then verify their findings using other analysis techniques, such as atomic force microscopy. But they believe the technique could in future be used to analyse the material's structure deep inside the active layers of a solar cell. This will enable them to understand how different fabrication methods impact on the cell's structure, and therefore its efficiency.

Dr Alan Dunbar from Sheffield's Faculty of Engineering explains: "The SERGIS technique uses polarised neutrons which are bounced off the sample being tested. Where the resulting neutrons end up and how their polarisation has changed tells us information about the structure within our samples. The advantage of this type of technique is that because neutrons only interact weakly with the sample we can probe much deeper where many microscopy techniques cannot see."

"This is the first time the technique has been used to look at this material which is of real interest to science. It enabled us to map the size of the PCBM crystallites and the distance between them, both properties which are key to improving efficiency."

Research into photovoltaics is one of many areas of energy research conducted at the University of Sheffield, including wind power, nuclear power, biofuels, district heating and carbon capture.

SERGIS - which stands for neutron spin echo resolved grazing incidence scattering - can only be conducted in a few places worldwide, among them the ISIS pulsed neutron and muon source in Oxfordshire.

####

For more information, please click here

Contacts:
Abigail Chard

0044-079-604-48532

Copyright © University of Sheffield

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

News and information

Lithium battery catalyst found to harm key soil microorganism February 7th, 2016

Scientists take key step toward custom-made nanoscale chemical factories: Berkeley Lab researchers part of team that creates new function in tiny protein shell structures February 6th, 2016

Discovery of the specific properties of graphite-based carbon materials February 6th, 2016

Hepatitis virus-like particles as potential cancer treatment February 5th, 2016

Thin films

IBS report electric transport across molybdenum disulfide grain boundaries: Scientific team from CINAP/IBS identifies previously undiscovered differences in grain boundaries January 28th, 2016

Weaving a new story for COFS and MOFs: First materials to be woven at the atomic and molecular levels created at Berkeley January 24th, 2016

Teijin to Participate in Nano Tech 2016 January 21st, 2016

Flexible film may lead to phone-sized cancer detector January 18th, 2016

Announcements

Lithium battery catalyst found to harm key soil microorganism February 7th, 2016

Scientists take key step toward custom-made nanoscale chemical factories: Berkeley Lab researchers part of team that creates new function in tiny protein shell structures February 6th, 2016

Discovery of the specific properties of graphite-based carbon materials February 6th, 2016

Organic crystals allow creating flexible electronic devices: The researchers from the Faculty of Physics of the Moscow State University have grown organic crystals that allow creating flexible electronic devices February 5th, 2016

Tools

Researchers discover new phase of boron nitride and a new way to create pure c-BN February 5th, 2016

Cornell researchers create first self-assembled superconductor February 1st, 2016

New record in nanoelectronics at ultralow temperatures January 28th, 2016

LC.300 Series Nanopositioning Controller from nPoint January 28th, 2016

Energy

February 4th, 2016

Putting silicon 'sawdust' in a graphene cage boosts battery performance: Approach could remove major obstacles to increasing the capacity of lithium-ion batteries January 30th, 2016

Simplifying solar cells with a new mix of materials: Berkeley Lab-led research team creates a high-efficiency device in 7 steps January 29th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

Solar/Photovoltaic

Simplifying solar cells with a new mix of materials: Berkeley Lab-led research team creates a high-efficiency device in 7 steps January 29th, 2016

An alternative to platinum: Iron-nitrogen compounds as catalysts in graphene January 28th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

Nanostructural Changes in Solar Cells to Increase Their Efficiency January 28th, 2016

Dental

Nano-shells deliver molecules that tell bone to repair itself January 16th, 2016

The artificial materials that came in from the cold: Berkeley Lab researchers develop nature-mimicking freeze-casting technique for fabricating advanced porous materials December 14th, 2015

Graphene oxide could make stronger dental fillings: Study reveals new filling material material that is not toxic to teeth December 4th, 2015

Details from the inner life of a tooth: New X-ray method uses scattering to visualize nanostructures November 21st, 2015

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