New Solar Cells Can Produce Electricity From Light and Heat Simultaneously

light and heat

A small PETE device made with cesium-coated gallium nitride glows while being tested inside an ultra-high vacuum chamber.

Though the sun offers us a couple options for exploiting its energy — light and heat — we’ve always had to choose to use one at a time, because solar-energy technology hasn’t been able to capture both typs of radiation simultaneously. Stanford researchers say that’s about to change, however. Their new breakthrough could put solar power on par with oil, price-wise. (Video)

 

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