The EU-funded PEARL consortium has reported major progress in developing flexible perovskite solar cells after 18 months of its Horizon Europe project. Researchers recorded efficiency milestones, with 21.6% achieved through surface treatments, 17.03% using greener solvents, and 14.8% via gravure printing methods. Dutch institute TNO demonstrated 9.1% efficiency with a fully roll-to-roll coated stack, while minimodules of 36 cm² reached 4.5%. Encapsulation techniques kept cells stable for more than 2,000 hours under damp-heat conditions. Life cycle assessments showed that carbon electrodes, recycled PET, and green energy reduced the carbon footprint by over 50%, alongside recovery processes for lead and cesium. The consortium is now working to optimize roll-to-roll production, expand testing to larger modules, and present findings at the EU PVSEC 2025 conference in Bilbao.
PEARL consortium advanced flexible perovskite solar cell project in Dresden
PEARL, VTT, ICIQ, TNO, and University of Rome Tor Vergata achieved efficiency gains and roll-to-roll progress in flexible perovskite solar cells across Europe.
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