Jun
8
American Institute of Physics researchers have constructed a photovoltaic cell that works both day and night by making use of the heat leaking from Earth back into space. At night, solar cells radiate and lose heat to the sky, reaching temperatures a few degrees below the ambient air. The device under development uses a thermoelectric […]
Feb
5
A Photovoltaic Cell That Works at Night
February 5, 2020 | Leave a Comment
University of California Davis researchers are asking, “What if solar cells worked at night?” They are not joking. In fact, their specially designed photovoltaic cell could generate up to 50 watts of power per square meter under ideal conditions at night, about a quarter of what a conventional solar panel can generate in daytime, according […]
Jan
22
Using Solar Heat to Make Solar Cells More Efficient
January 22, 2014 | 1 Comment
A new approach developed at MIT uses sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell that could generate power from sunlight efficiently and on demand. The MIT researchers expect the technique could also make it easier to store the energy for later use. The new […]
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