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Scientists report first solar cell producing more electrons in photocurrent than solar photons entering cell

(PhysOrg.com) -- 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.

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Laboratory avalanches reveal behaviour of ice flows

(PhysOrg.com) -- Avalanches created in controlled laboratory environments are helping us to understand the potentially lethal processes that these natural disasters unleash.

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Laboratory avalanches reveal behaviour of ice flows

(PhysOrg.com) -- Avalanches created in controlled laboratory environments are helping us to understand the potentially lethal processes that these natural disasters unleash.

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