Multi-Junction Solar Cells with High Efficiency
Cyrium Technologies Inc.,Ottawa,announced that multi-junction solar cells produced by the company now exceed the performance of all commercially manufactured solar cells.
Cyrium's first generation solar cells offer efficiencies of 40 per cent or higher together with a nearly constant conversion efficiency for solar concentrations from 200 to greater than 1000 suns. This performance sets a new standard for the solar cells' intended use in the Concentrator PhotoVoltaic (CPV) industry.Cyrium's solar cells not only have record efficiencies, but they exhibit nearly constant efficiency over solar intensities varying from 200 to 1000 suns.Other multi-junction solar cell technologies typically peak at some sun concentration value and decline quickly (efficiency roll off) with increasing concentration.Another benefit of the very low roll-off feature of Cyrium's cells is that CPV systems often have a variable intensity profile when the sun is focussed on an array of cells so that cells need to perform even when the peak concentration is two to three times higher than the nominal concentration.
The most outstanding feature of Cyrium's approach is an optimized design for multi-junction cells that does not add complexity or cost.Cyrium anticipates its second generation product will reach 43 per cent efficiency within one year and third generation products are targeted to be at 45 per cent within two years.
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Cyrium's first generation solar cells offer efficiencies of 40 per cent or higher together with a nearly constant conversion efficiency for solar concentrations from 200 to greater than 1000 suns. This performance sets a new standard for the solar cells' intended use in the Concentrator PhotoVoltaic (CPV) industry.Cyrium's solar cells not only have record efficiencies, but they exhibit nearly constant efficiency over solar intensities varying from 200 to 1000 suns.Other multi-junction solar cell technologies typically peak at some sun concentration value and decline quickly (efficiency roll off) with increasing concentration.Another benefit of the very low roll-off feature of Cyrium's cells is that CPV systems often have a variable intensity profile when the sun is focussed on an array of cells so that cells need to perform even when the peak concentration is two to three times higher than the nominal concentration.
The most outstanding feature of Cyrium's approach is an optimized design for multi-junction cells that does not add complexity or cost.Cyrium anticipates its second generation product will reach 43 per cent efficiency within one year and third generation products are targeted to be at 45 per cent within two years.
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Labels: costs, efficiency, energy, solar
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