Monday, August 18, 2008

NREL Sets New Solar Cell Efficiency World Record at 40.8%

NREL (TGW) – Researchers at the National Renewable Energy Laboratory (NREL) have set a world record in solar efficiency, creating a solar cell that is 40.8% efficient at converting light, compared to the previous record of 40.7%.

The scientists used a variety of methods to improve efficiency: “The cell uses compositions of gallium indium phosphide and gallium indium arsenide to split the solar spectrum into three equal parts that are absorbed by each of the cell's three junctions for higher potential efficiencies,” the lab said in a press release.

This lets the cell be efficient at different spectrums.

The cell hit the efficiency under the amount of light concentrated on was equal to 326 suns – the amount of sunlight that hits the earth in 326 days.

Via :: Press Release


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