Solar energy breaks through the quantum efficiency barrier

PhysOrg.com reports that researchers have broken through the quantum efficiency barrier,  a measure of how efficient solar panels are at absorbing light and turning the photons into electricity:

Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited with photons from the high energy region of the solar spectrum.

Read more.

And when that electricity gets captured, researchers may also have a good copper battery to store that energy.

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