Scientists hit 21.6% perovskite cell efficiency using concentrator PV

An international research group achieved the result on a 9 sq mm, triple-cation based, n-i-p structured perovskite cell using low solar concentration levels. Device instability, however, remains a challenge.Scientists from the University of Exeter, in the U.K.; Switzerland's Ecole Polytechnique Federale de Lausanne (EPFL); and Saudi Arabia's Center of Excellence for Advanced Materials Research claim to have developed a perovskite solar cell with an efficiency of 21.6% by using concentrator photovoltaic technology. A triple-cation based, n-i-p structured perovskite cell, described in the paper ...

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