The German Fraunhofer institute and the French research institute CEA-Leti to say a new record was obtained for the conversion of sunlight to electricity using solar cells. The new record is a speed vnom efficiency of 46 percent, and 50 is considered feasible.
According to the French and German scientists was the correct distribution of the photons over the four subcellen of the multi-junctioncel the most difficult hurdle that needed to be taken. By the thickness of each layer within the solar cell to change and by changes in the material composition would have a higher efficiency are achieved compared to earlier designs.
Fraunhofer and CEA-Leti claim that their concentrator photovoltaic technology is the most efficient and is particularly interesting for areas where the sun’s intensive radiation. In addition, speak to the researchers, the expectation that in the near future rates of return of 50 percent. The developed cells are produced by Soitec.