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Research dossier · version 1 · updated Oct 30, 2026

Perovskite & Tandem Photovoltaics: State of the Field (October 2026)

This dossier covers perovskite single-junction cells, perovskite-silicon and all-perovskite tandems, their efficiency records, stability work and scale-up. The main takeaway is that laboratory perovskite-silicon tandems now report efficiencies above the single-junction detailed-balance limit of roughly 33 percent, while field durability, standardized stability reporting and large-area uniformity remain the binding constraints.

2,970 words50 sources30 evidence-mapped claims8 benchmarks15 timeline events✓ citation-verified Oct 30, 2026

AI-assisted synthesis of the cited literature, independently fact-checked against its sources; not peer reviewed.

Contents

  1. Executive summary
  2. Background and core concepts
  3. Timeline of key milestones
  4. State of the art
  5. Single-junction devices: composition, interfaces and passivation
  6. Perovskite-silicon tandems
  7. All-perovskite tandems
  8. Stability and degradation
  9. Scale-up and manufacturing
  10. Lead-free absorbers and modelling
  11. Quantitative benchmarks
  12. Open problems and active debates
  13. Major programs and players
  14. Outlook: what to watch (near term)
  15. Key papers
  16. Glossary

Sample findings

  • Organometal halide perovskites were introduced as visible-light sensitizers for photovoltaic cells in 2009.
  • Solid-state mesoscopic perovskite cells had passed 9% efficiency by 2012.
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