Multitandem record cell

25 09 2013

The Fraunhofer Institute for Solar Energy Systems ISE, Soitec, CEA-Leti and the Helmholtz Center Berlin jointly announced today having achieved a new world record for the conversion of sunlight into electricity using a new solar cell structure with four solar subcells. Surpassing competition after only over three years of research, and entering the roadmap at world class level, a new record efficiency of 44.7% was measured at a concentration of 297 suns. This indicates that 44.7% of the solar spectrum’s energy, from ultraviolet through to the infrared, is converted into electrical energy. This is a major step towards reducing further the costs of solar electricity and continues to pave the way to the 50% efficiency roadmap.

Note that solar cell efficiencies usually reported in this blog are at 1 sun while this cell operates at high concentration of the sunlight (297 suns).

Press Release “World Record Solar Cell with 44.7% Efficiency” [PDF 202.5 kB]


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