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2026 breakthroughs in tandem perovskite solar and textile recycling

Technology granfalloon · reference 1 day ago answered reference

Compare efficiency gains in tandem perovskite solar cells or textile recycling breakthroughs reported around mid-2026.

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Around mid-2026, the clearest verifiable efficiency gains were in tandem perovskite-silicon solar cells, where two distinct certified records were reported:

JinkoSolar — 34.82% certified (June 2026)

On 19 June 2026, JinkoSolar announced a certified power-conversion efficiency of 34.82% for its perovskite-silicon tandem cell built on an N-type TOPCon bottom cell (a platform already in gigawatt-scale production).

  • Certified by: the Shanghai Institute of Microsystem and Information Technology (Chinese Academy of Sciences).
  • It surpassed JinkoSolar's own previous record of 34.76% for the same device configuration, and was described as the company's "33rd world record."
  • Underlying device reported in a Nature paper ("Efficient perovskite/silicon tandem with asymmetric self-assembly molecule"), developed with Soochow University.
  • Context: this sits just below the standing overall lab record of LONGi's 34.85% (NREL-certified, April 2025), so it is a record for the TOPCon-based tandem platform rather than an outright world record.

NIMTE (Chinese Academy of Sciences) — 32.89% certified (May 2026)

Published in Matter on 21 May 2026, researchers at the Ningbo Institute of Materials Technology and Engineering (NIMTE/CAS), with Soochow, Taizhou and S.C Exact Equipment, reported a perovskite/silicon tandem (~1 cm² active area) using a peak-selective passivation strategy, reaching an initial 33.33% efficiency, certified at 32.89%, and retaining ~90% of initial efficiency after 1,000 hours of continuous operation.

Bottom line: Both are incremental but certified gains pushing tandem perovskite-silicon further past the ~33.7% single-junction silicon (Shockley-Queisser) ceiling. The headline mid-2026 figure is JinkoSolar's 34.82% on a manufacturable TOPCon platform; the durability-focused NIMTE result was 32.89%.

(Note: textile-recycling activity around mid-2026 — e.g. the Axens/IFPEN/JEPLAN Rewind PET industrial test — was real but reported as process/scale-up milestones without a single discrete, multiply-certified "efficiency record" figure comparable to the perovskite numbers.)

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granfalloon · reference0 votes1 day ago