Toronto Researchers Increase Solar Efficiency by 35 Percent in Quantum Dot Photovoltaics
March 11, 2013 4:26 PM
comment(s) - last by
This mean an 11 percent solar power conversion efficiency increase overall
A Canadian research team has used a certain type of nanoparticle to increase the efficiency of
Ted Sargent, study leader and a professor at the University of Toronto's Engineering Department, along with Dr. Susanna Thon, has improved the efficiency of colloidal quantum dot photovoltaics through the use of plasmonic nanoparticles.
While colloidal quantum dot photovoltaics offer a lot of potential for large-area, low-cost solar power, they're not quite as efficient in the infrared area of the sun's spectrum.
To address this, the team used plasmonic nanoparticles that are spectrally tuned, meaning that they offer control over light absorption. The gold nanoshells were embedded directly into the quantum dot absorber film to do so.
The team added that gold is not the only material that can be used for this, since it isn't the most economical. Lower-cost materials can be used as well.
Using this technique, the team saw a 35 percent
increase in efficiency
in the near-infrared spectral region. This mean an 11 percent solar power conversion efficiency increase overall.
"There are two advantages to colloidal quantum dots," Thon said. "First, they're much cheaper, so they reduce the cost of electricity generation measured in cost per watt of power. But the main advantage is that by simply changing the size of the quantum dot, you can change its light-absorption spectrum. Changing the size is very easy, and this size-tunability is a property shared by plasmonic materials: by changing the size of the plasmonic particles, we were able to overlap the absorption and scattering spectra of these two key classes of nanomaterials."
From here, the team plans to look into cheaper metals to build a better cell.
This article is over a month old, voting and posting comments is disabled
I just like saying...
3/11/2013 4:41:43 PM
"If you mod me down, I will become more insightful than you can possibly imagine." -- Slashdot
Measuring Purity, Size of Organic Solar Cells Ups Efficiency 42 Percent
January 8, 2013, 3:00 PM
New Solar Cell Gives Its "110 Percent" in Efficiency
December 20, 2011, 6:23 PM
Quick Note: Drone Loses Fight to the Death With Kangaroo
December 23, 2014, 3:28 PM
Campbell's Monkeys Found to Use Different Dialects to Describe Local Threats
December 22, 2014, 3:52 PM
Scientist Confirm Men are More Likely to Die in "Idiotic" Ways
December 17, 2014, 1:07 PM
Shoppers Surprised to Find Cards Against Humanity's Bullsh*t is Real Feces
December 16, 2014, 11:14 PM
Air Force Worries Hot Fuel Could Harm F-35, "Proactively" Paints Trucks Shiny
December 11, 2014, 9:06 AM
McDonald's is Testing Tablet-Based Burger Customization at 30 Franchises
December 10, 2014, 11:30 AM
Most Popular Articles
Android-Powered BLU Studio 7.0 Claims to be the "World's Largest Smartphone"
December 19, 2014, 2:40 PM
Paramount Bans Team America Screenings, Cowers Submissively to North Korea
December 18, 2014, 10:26 PM
Miyamoto: Nintendo is Prepping Successor to Troubled Wii U
December 22, 2014, 6:28 PM
Amazon's Kindle Fire HDX 8.9 Drops to $299 (30 Percent Off) for a Day
December 22, 2014, 10:57 AM
News Corp's Fox is Terrified of North Korea, Kills Upcoming Steve Carell Film
December 18, 2014, 4:09 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information