Chinese scientists build 31.13%-efficient perovskite-silicon tandem solar cell via 2D seeding agent

Researchers in China developed a novel two dimensional (2D) seeding agent to regulate crystallization in a 1.80-eV wide-bandgap perovskite film. A perovskite-silicon tandem device made with the resulting optimized subcell achieved an efficiency of 31.13%, outperforming a control device.A research team from Northwestern Polytechnical University, jointly with Xi'an Shiyou University and Xidian University, has developed a novel perovskite film crystallization regulation strategy for tandem wide-bandgap organic-inorganic hybrid halide perovskite solar cells. It was enabled by using CsPb2Br5 as a ...

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