• 5 minutes Is Pete Buttigieg emerging as the most likely challenger to Trump?
  • 7 minutes Can LNG Kill Oil?
  • 8 minutes Question: Why are oil futures so low through 2020?
  • 11 minutes US Shale: Technology
  • 2 mins “The era of cheap & abundant energy is long gone. Money supply & debt have grown faster than real economy. Debt saturation is now a real risk, requiring a global scale reset.”"We are now in new era of expensive unconventional energy
  • 2 hours CoV-19: China, WHO, myth vs fact
  • 6 hours Blowout videos
  • 1 day Question - What if there are no buyers for Chevron's Appalachia Assets?
  • 1 hour Democrats Plan "B" Bloomberg Implodes. Plan "C" = John Kerry ?
  • 2 hours Don't sneeze. Coronavirus is a threat to oil markets and global economies
  • 2 days OIL trades as if the virus is a 1 quarter event. As if it's Containable, Reversible and Temporary. Is it ?
  • 21 hours Natural Gas
  • 2 days Energy from thin air?
  • 1 day Cheap natural gas is making it very hard to go green
  • 2 days Coronovairus, Phase One Agreement, Lower for Longer
  • 2 days Hey NYC - Mayor De Blasio declares you must say goodbye to fossil fuels. Get ready to freeze your Virtue Signaling butts off.
Libya Faces Disaster If Oil Blockade Continues

Libya Faces Disaster If Oil Blockade Continues

Libya is facing financial disaster…

New Solar Cell Technology could Yield 50% Conversion Efficiency

New Solar Cell Technology could Yield 50% Conversion Efficiency

“At present, the world record triple-junction solar cell efficiency is 44 percent under concentration and it is generally accepted that a major technology breakthrough will be required for the efficiency of these cells to increase much further,” so states Dr. Robert Walters, a Navy Research Laboratory (NRL) Research Physicist.

Now Dr. Walters and a team of scientists from the Electronics Technology and Science Division at the NRL, in collaboration with other institues such as Imperial College London, have developed a new triple junction solar cell which has the potential to work at a conversion efficiency of 50 percent.

“This research has produced a novel, realistically achievable, lattice-matched, multi-junction solar cell design with the potential to break the 50 percent power conversion efficiency mark under concentrated illumination,” he said.

Related Article: Solar and Big Oil Join Forces in Middle East

As the name suggests multi-junction solar cells are made of several junctions which can be tuned to different wavelength bands of the solar spectrum to increase the energy absorbed and the overall efficiency of the cell. Eg. a triple junction cell can absorb the energy from three different wavelength bands.

In theory a cell with infinite junctions could have a conversion efficiency of around 87 percent. The barrier to developing cells with many junctions is the challenge of developing a semiconductor material which can attain a wide range of bandwidths and maintain a high crystalline quality.

The group of researchers have recently been awarded a grant from the US Department of Energy under the ARPA-E scheme in order to undertake in a three year materials and device development program to realize this new technology.

By. Charles Kennedy of Oilprice.com



Join the discussion | Back to homepage


Leave a comment
  • GordonE on January 18 2013 said:
    Temperature (heat) also effects convergence efficiency (reduces it). In high energy energy environments, it tends to be hot. A paradox, isn't it.

Leave a comment

Oilprice - The No. 1 Source for Oil & Energy News