Eli Yablonovitch and Owen Miller, who worked out the theory for the new solar cell (Photo: Eli Yablonovitch)
The record-breaking Alta Devices solar cell (Photo: Joe Foster, Alta Devices)
When you think of a solar cell, you probably think of something designed to absorb as much sunlight as possible. What you probably don't think of is something that is also capable of emitting light. Nonetheless, that’s exactly what a new prototype device designed more like an LED does, and it recently set an efficiency record for flat-plate single junction solar cells.
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