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

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Unique nano-capsules promise the targeted drug delivery: Russian scientists created unique nano-capsules for the targeted drug delivery May 5th, 2016

Molybdenum disulfide holds promise for light absorption: Rice researchers probe light-capturing properties of atomically thin MoS2 May 5th, 2016

Govt.-Legislation/Regulation/Funding/Policy

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Molybdenum disulfide holds promise for light absorption: Rice researchers probe light-capturing properties of atomically thin MoS2 May 5th, 2016

New tool allows scientists to visualize 'nanoscale' processes May 4th, 2016

Nanoelectronics

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

With simple process, UW-Madison engineers fabricate fastest flexible silicon transistor April 21st, 2016

All powered up: UCI chemists create battery technology with off-the-charts charging capacity April 21st, 2016

Discoveries

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Unique nano-capsules promise the targeted drug delivery: Russian scientists created unique nano-capsules for the targeted drug delivery May 5th, 2016

Molybdenum disulfide holds promise for light absorption: Rice researchers probe light-capturing properties of atomically thin MoS2 May 5th, 2016

The intermediates in a chemical reaction photographed 'red-handed' Researchers at the UPV/EHU-University of the Basque Country have for the first time succeeded in imaging all the steps in a complex organic reaction and have resolved the mechanisms that explain it May 4th, 2016

Announcements

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Unique nano-capsules promise the targeted drug delivery: Russian scientists created unique nano-capsules for the targeted drug delivery May 5th, 2016

Molybdenum disulfide holds promise for light absorption: Rice researchers probe light-capturing properties of atomically thin MoS2 May 5th, 2016

Energy

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Nanoparticles present sustainable way to grow food crops May 1st, 2016

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Researchers create artificial protein to control assembly of buckyballs April 27th, 2016

Solar/Photovoltaic

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

Manipulating light inside opaque layers April 24th, 2016

Thin-film solar cells: How defects appear and disappear in CIGSe cells: Concentration of copper plays a crucial role April 23rd, 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