30 Jan '13, 11pm

“Game-Changing” Solar Invention Announced

“Game-Changing” Solar Invention Announced

In contrast to other concentrator modules the distance between optic and solar cell is only a few millimeters and filters only the desirable wavelengths of the light. The sunlight is then concentrated on the solar cells. “Thanks to this specific wavelength selection, we avoid overheating issues usually generated by concentrated technologies which are today the source of significant efficiency losses,” explains Jost. The new module continues to use silicon as the solar cell material. “With the holographic optic a 20- to 30-times concentration of the desirable wavelengths of the light makes a silicon needs reduction by over 90% compared to the amount of silicon used in standard solar modules possible,” explains Jost. “The amount of silicon used in our prototype can be measured in millimeters, reaching barely 3% of the total module area. Since solar cells account for more tha...

Full article: http://cleantechnica.com/2013/01/30/high-efficiency-solar...

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