What is unique about Cyriums solar cells?
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. Solar cells with high roll-off have limitations commercially because Concentrator Photovoltaics (CPV) manufacturers typically require the efficiency to be highest at 500 sun concentration or greater. 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 focused 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. Cyrium’s technological achievements include reduced series resistance and cell sizes that are optimum for most efficient commercial use. The CPV industry uses solar cells that are typic
