Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > News > Quantum dots could boost solar cell efficiency

March 16th, 2009

Quantum dots could boost solar cell efficiency

Abstract:
Solar cells may soon be more efficient than previously thought possible, thanks to a recent result from the PULSE Institute for Ultrafast Energy Science, a joint institute of DOE's SLAC National Accelerator Center and Stanford University. The PULSE researchers confirmed the results of a Los Alamos National Laboratory experiment that measured one photon of light generating more than one electron of electricity in a so-called "quantum dot"—a sphere made of only a few thousand atoms. Scientists previously assumed that one photon could excite exactly one electron, limiting the efficiency of solar cells. Using a slightly different experimental method than previous such experiments, the PULSE researchers confirmed the Los Alamos findings and determined that a single photon can excite as many as three electrons in a quantum dot. The next step in the quest for efficient solar power is to build a solar cell that uses quantum dots to realize this efficiency.

Source:
Department of Energy

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Possible Futures

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Nanotechnology in Energy Applications Market Research Report 2014-2018: Radiant Insights, Inc January 15th, 2015

'Mind the gap' between atomically thin materials December 23rd, 2014

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Announcements

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Quantum Dots/Rods

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Rice-sized laser, powered one electron at a time, bodes well for quantum computing January 15th, 2015

Shining a light on quantum dots measurement January 15th, 2015

Carbon Nanotubes Increase Efficiency of Solar Cells January 12th, 2015

Solar/Photovoltaic

New method allows for greater variation in band gap tunability: The method can change a material's electronic band gap by up to 200 percent January 31st, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Los Alamos Develops New Technique for Growing High-Efficiency Perovskite Solar Cells: Researchers’ crystal-production insights resolve manufacturing difficulty January 29th, 2015

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE