tandem solar cells

Energy solutions provider Qcells has achieved a world record of 28.6% efficiency in tandem solar cells on a full-area M10-sized cell (~0.36ft²) through its research and development (R&D) pilot line in Germany.  The milestone, verified by CalLab at the Fraunhofer Institute for Solar Energy Systems, advances perovskite-silicon tandem technology toward scalable solar solutions. The innovation focuses on mass manufacturing using commercially viable processes, moving beyond laboratory-scale concepts.  Qcells’ tandem cells stack a perovskite top cell…