Sep
24
New Record Solar Cell Efficiency at 44.7 Percent
September 24, 2013 | Leave a Comment
The Fraunhofer Institute for Solar Energy Systems ISE, Soitec, CEA-Leti and the Helmholtz Center Berlin jointly announced achieving a new world record for solar cell efficiency. Using a new solar cell structure with four solar subcells the team surpassed all the competition after only over three years of research. The new record efficiency of 44.7% […]
Dec
22
A Claim for 100%+ Solar Cell Efficiency
December 22, 2011 | Leave a Comment
A research team at the National Renewable Energy Laboratory (NREL) report in Science the first photovoltaic solar cell that produces a photocurrent that has an external quantum efficiency greater than 100% when photoexcited with photons from the high energy region of the solar spectrum. For comparison external quantum efficiency for photocurrent is usually expressed as […]
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