Dec 312018
Researchers at the Helmholtz-Zentrum Berlin (HZB) in Germany have achieved a record 25.5% conversion efficiency in a perovskite-silicon tandem solar cell after adding a microstructured foil over the perovskite layer to optimize the light management. Tandem solar cells could be one possible way to overcome the theoretical limit of the efficiency of silicon solar cells, which are still dominating the market. But while tandem devices made from combinations of silicone and GaInP or GaAs, for...


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