Researchers from Germany's Forschungszentrum Jülich have demonstrated that heterojunction (HJT) solar cells metalized with copper (Cu) paste or copper-silver (AgCu) paste can achieve efficiency levels ...
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.
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