Tandem perovskite-silicon solar cells stack a wide-bandgap perovskite top cell over a narrower-bandgap silicon bottom cell to capture more sunlight wavelengths, pushing efficiencies beyond silicon’s single-junction limit of ~29%.
Efficiency Records
Laboratory cells have achieved certified efficiencies up to 34.85% (LONGi Solar, 2025), with flexible versions reaching 33.6% and other tandems around 30-34%.
Commercial Progress
Companies like Trina Solar, JinkoSolar, and LONGi are advancing toward high-power modules, with 2025-2026 pilots focusing on stability and scalability for market entry.
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