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World's Most Efficient Solar Cell

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A concentrator triple-junction compound solar cell,
. . . 44.4%  conversion efficiency in only 4mm x 4mm!

Previously, these types of high-efficiency solar cells have only been used on space satellites,
. . . but with each record it breaks, Sharp hopes to be inching toward a time
. . . when they can help us sever our ties to fossil fuels here on Earth as well.

Source:  44.4%


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