Double-Decker Solar Cells Capture More Sunlight

Physics





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The fact that the new perovskite solar cell lets through most of the light it doesn't use gives cell designers a second chance to catch the energy. Empa

Swiss engineers have demonstrated tandem solar cells layered so they can catch more of the solar spectrum, providing a route to cheaper and more efficient solar power. The cells are not yet ready for commercial applications, but could mark a major step forwards for renewable energy.