Perovskite-Silicon Tandem Cells
Breaking the theoretical limits of silicon.
Explore this event on the interactive timeline →Standard silicon solar cells have a theoretical physical limit (the Shockley-Queisser limit) of about 33.7% efficiency. The industry broke this limit by layering Perovskite crystals on top of silicon.
Key Numbers
- Efficiency Record
- 34.85% (Tandem)
- Architecture
- Perovskite on Silicon
Verified Facts
- By early 2026, the NREL-certified world record for a perovskite-silicon tandem cell stood at 34.85% (achieved by LONGi).
- Perovskites absorb blue light, while the underlying silicon absorbs red and infrared light. This allows the panel to capture a much wider spectrum of the sun's energy.
- Oxford PV and other manufacturers began shipping commercial-sized tandem modules, setting the stage for another massive leap in energy generation density.