Slow 'hot electrons' could improve solar cell efficiency
18 hours ago
Photons with energy higher than the band gap of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy in respect to the band gap is lost very fast, as it is converted into heat and ...
Fast-moving electrons create current in organic solar cells
Jan 12, 2018
Researchers at Purdue University have identified the mechanism that allows organic solar cells to create a charge, solving a longstanding puzzle in physics, according to a paper published Friday (Jan. 12) in the journal Science ...
Harnessing the power of algae—new, greener fuel cells move step closer to reality
Jan 10, 2018
A new design of algae-powered fuel cells that is five times more efficient than existing plant and algal models, as well as being potentially more cost-effective to produce and practical to use, has been developed by researchers ...
Advanced multi-junction solar cells deliver high efficiency, reduced costs for space
Jan 04, 2018
Experts at the Air Force Research Laboratory continue to expand the scope of their technological expertise, rising above the Earth's surface to meet the power needs of next generation military spacecraft.
Laser evaporation technology to create new solar materials
Jan 03, 2018
Materials scientists at Duke University have developed a method to create hybrid thin-film materials that would otherwise be difficult or impossible to make. The technique could be the gateway to new generations of solar ...
Standardizing perovskite aging measurements
Jan 02, 2018
Perovskite solar cells are an alternative to conventional silicon solar cells, and are poised to overtake the market with their high power-conversion efficiencies (over 22% now) and lower capital expenditure and manufacturing ...
New photovoltaic production technique reduces cost while boosting stability
Dec 21, 2017
Perovskite solar cells are cheap to produce and simple to manufacture. Improving their efficiency, as one EU-backed project has just done, makes them an ever-more compelling alternative source of energy.
New technique allows rapid screening for new types of solar cells
Dec 20, 2017
The worldwide quest by researchers to find better, more efficient materials for tomorrow's solar panels is usually slow and painstaking. Researchers typically must produce lab samples—which are often composed of multiple ...
Fully screen-printed monoPoly silicon solar cell technology
Dec 14, 2017
The Solar Energy Research Institute of Singapore (SERIS) at the National University of Singapore (NUS) has reached a new cell efficiency milestone in the development of its low-cost screen-printed bifacial monoPoly silicon ...
Climate conditions affect solar cell performance more than expected
Dec 13, 2017
Massachusetts Institute of Technology researchers can now predict how much energy solar cells will produce at any location worldwide. Surprisingly, they identified that two types of solar cells (silicon and cadmium telluride) ...