Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Yale engineers making solar power more efficient

Abstract:
Innovations by a team of Yale University researchers could lead to improvements in basic solar power technology that result in lower-cost, higher-efficiency photovoltaic systems.

Yale engineers making solar power more efficient

New Haven, CT | Posted on December 8th, 2011

Photovoltaics (PV) directly convert sunlight into electricity. PV systems can be arrayed on rooftops to generate electricity for entire buildings, among other uses. Less expensive, more efficient systems could encourage broader use of this clean energy technology.

The Yale team, which includes both engineers and applied physicists, has developed a new way of guiding and channeling electrons within hybrid organic-inorganic PV devices by better controlling the structure and alignment of the materials in the system. This improves efficiency by maximizing the amount of light that is successfully converted into electricity.

"The key here is controlling the structure of the system on multiple levels, or length scales, and doing it in a manner that is conducive to fabrication of devices over large areas," said Chinedum O. Osuji, a Yale engineering professor and a principal investigator behind research recently published online in the journal Advanced Materials. Lisa D. Pfefferle and Andre D. Taylor of Yale's Department of Chemical and Environmental Engineering and Sohrab Ismail-Beigi of the Department of Applied Physics also served as principal investigators.

In their current form, hybrid organic-inorganic PV devices convert only a small fraction of light into energy. This is largely due to the poorly ordered structure of the active materials now used, resulting in a convoluted path for the flow of electrons. The Yale team has devised ways of more efficiently channeling the electrons through the system, involving aligned arrays of polymer-coated nanowires that can act as the active material for a solar cell. The application of magnetic fields aligns the nanowires, creating more direct pathways for charge transport in the device.

"We are currently working on building and systematically testing actual solar cells using these highly ordered materials" Osuji said.

Other authors include: Shanju Zhang, Candice I. Pelligra, Gayatri Keskar, Pawel W. Majewski, all of the Department of Chemical and Environmental Engineering at the Yale School of Engineering & Applied Science; and Jie Jiang of the Department of Applied Physics, also at Yale School of Engineering & Applied Science.

Support for the research was provided by the National Science Foundation.

####

For more information, please click here

Contacts:
Eric Gershon
203-432-8555

Copyright © Yale University

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

Link to Chinedum O. Osuji's faculty page:

Related News Press

News and information

Graphene is strong, but is it tough? Berkeley Lab scientists find that polycrystalline graphene is not very resistant to fracture February 7th, 2016

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

Govt.-Legislation/Regulation/Funding/Policy

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

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

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

Nanoelectronics

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

Spin dynamics in an atomically thin semi-conductor February 1st, 2016

New type of nanowires, built with natural gas heating: UNIST research team developed a new simple nanowire manufacturing technique February 1st, 2016

Nanosheet growth technique could revolutionize nanomaterial production February 1st, 2016

Discoveries

Graphene is strong, but is it tough? Berkeley Lab scientists find that polycrystalline graphene is not very resistant to fracture February 7th, 2016

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

Announcements

Graphene is strong, but is it tough? Berkeley Lab scientists find that polycrystalline graphene is not very resistant to fracture February 7th, 2016

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

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

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