Nanotechnology Now





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

Down to the quantum dot: Jülich researchers develop ultrahigh-resolution 3-D microscopy technique for electric fields July 7th, 2015

Miniature Technology, Large-Scale Impact: Winner of the 2015 Lindros Award for translational medicine, Kjeld Janssen is pushing the boundaries of the emerging lab-on-a-chip technology - See more at: http://www.news.ucsb.edu/2015/015744/miniature-technology-large-scale-impact#stha July 7th, 2015

Transition from 3 to 2 dimensions increases conduction, MIPT scientists discover July 6th, 2015

A Stretchy Mesh Heater for Sore Muscles July 6th, 2015

Thin films

New micro-supercapacitor structure inspired by the intricate design of leaves: A team of scientists in Korea has devised a new method for making a graphene film for supercapacitors July 2nd, 2015

Stanford researchers stretch a thin crystal to get better solar cells June 25th, 2015

World’s 1st Full-Color, Flexible, Skin-Like Display Developed at UCF June 24th, 2015

Picosun ALD breaks through in medical technology June 23rd, 2015

Announcements

Down to the quantum dot: Jülich researchers develop ultrahigh-resolution 3-D microscopy technique for electric fields July 7th, 2015

Miniature Technology, Large-Scale Impact: Winner of the 2015 Lindros Award for translational medicine, Kjeld Janssen is pushing the boundaries of the emerging lab-on-a-chip technology - See more at: http://www.news.ucsb.edu/2015/015744/miniature-technology-large-scale-impact#stha July 7th, 2015

Transition from 3 to 2 dimensions increases conduction, MIPT scientists discover July 6th, 2015

A Stretchy Mesh Heater for Sore Muscles July 6th, 2015

Tools

Down to the quantum dot: Jülich researchers develop ultrahigh-resolution 3-D microscopy technique for electric fields July 7th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Nanometrics to Announce Second Quarter Financial Results on July 23, 2015 July 2nd, 2015

Energy

New technology using silver may hold key to electronics advances July 2nd, 2015

Visible Light-Sensitive Photocatalysts Used for Purification of Contaminated Water in Iran June 30th, 2015

June 29th, 2015

Making new materials with micro-explosions: ANU media release: Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material June 29th, 2015

Solar/Photovoltaic

Making new materials with micro-explosions: ANU media release: Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material June 29th, 2015

Spain nanotechnology featured at NANO KOREA 2015 June 26th, 2015

Stanford researchers stretch a thin crystal to get better solar cells June 25th, 2015

Toward tiny, solar-powered sensors: New ultralow-power circuit improves efficiency of energy harvesting to more than 80 percent June 23rd, 2015

Dental

Strong teeth: Nanostructures under stress make teeth crack resistant June 10th, 2015

Deben reports on the research of Dr Sunita Ho from UCSF using a CCT500 tensile stage to study the behaviour of dental materials April 14th, 2015

A novel way to apply drugs to dental plaque Nanoparticles release drugs to reduce tooth decay April 1st, 2015

Graphene reduces wear of alumina ceramic March 26th, 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