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Solar cells

Solar cells

Sunny superpower: solar cells close in on 50% efficiency

15 Apr 2021
Taken from the April 2021 issue of Physics World.

Researchers are working to improve the efficiency of multi-layer solar cells. Richard Stevenson explores whether their practical benefits are more likely to be realized in space than on Earth

solar farm
Catch the rays Solar radiation is a source of almost limitless power, but researchers are still working to create high-efficiency solar cells that convert more sunlight into useable energy. (Courtesy: iStock/Noctiluxx)
For solar cells, efficiency really matters. This crucial metric determines how much energy can be ha

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Richard Stevenson is editor of Compound Semiconductor magazine, e-mail richardstevenson@zoho.com
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