Solar Energy Conversion Efficiency of 47% Demonstrated

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A new six-junction solar cell, developed by NREL (National Renewable Energy Laboratory), converts 47.1% of incident light into electricity when combined with optical concentration. Indications thus far suggest solar cells of this type can reach an efficiency rate of 50%. There are a number of obstacles to commercialization, though NREL believes that will probably be…

Solar Energy Conversion Efficiency of 47% Demonstrated
Share with us

A new six-junction solar cell, developed by NREL (National Renewable Energy Laboratory), converts 47.1% of incident light into electricity when combined with optical concentration. Indications thus far suggest solar cells of this type can reach an efficiency rate of 50%. There are a number of obstacles to commercialization, though NREL believes that will probably be overcome in the near future. One of these is the presence of a resistive barrier inside the cell, which prevents the flow of a high percentage of current. This problem does not allow to achieve a 50% efficiency. Another obstacle to consider is the high
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