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The Spark

See-Through Solar Is Tomorrow’s Threat to Oil

In episode 5 of The Spark, screens and windows that soak up light could power your home or your phone
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Invisible Solar Cells That Could Power Skyscrapers

Solar energy is the future. The problem is, it’s been the future for a long time. And while progress has been made, using the sun as a primary source of power hasn’t really broken through.

One possible breakthrough, however, is becoming clearer—literally. The engineers at Ubiquitous Energy are developing solar panels that are completely transparent and as thin as a laminate. They can do this by creating see-through solar cells that absorb only the invisible parts of the solar spectrum—ultraviolet and infrared radiation.