Fraunhofer ISE builds first perovskite-silicon tandem solar cell with copper metallization

Using the mask-and-plate copper metallization technique, scientists at the German research center fabricated a 1.21 cm² perovskite-silicon tandem solar cell featuring a heterojunction bottom device. The cell achieved an efficiency of 19.35%, reportedly the highest value reached to date for this cell type using galvanic front metallization. Researchers at the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) in Germany have, for the first time, applied the so-called mask-and-plate front-metallization approach to the development of perovskite-silicon tandem solar cells. "The novelty ...

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