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A major milestone has been reached thanks to the collaboration between IPVF and TU Delft in the development of scalable 2T perovskite/silicon tandem solar cells, with a conversion efficiency of 31% on 4 cm² 2T devices. The device combines lower nanotextured silicon heterojunction cells developed at TU Delft with upper perovskite cells fabricated at IPVF using an ambient air slot chip coating.

Download the conference program Book your seat today Access the conference official website Mirror Page for Global Access ISOS 17 17th International Summit on Organic and Hybrid Perovskite Solar Cell Stability 21 – 23 September 2026 Summit Venue & Overview >> click here to book your seat today The International Summit on Organic and Hybrid Perovskite Solar Cell Stability (ISOS) is the first global forum dedicated to stability research in next-generation PV technologies. Hosted by:

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At IPVF, diversity and equal opportunities are at the heart of our corporate culture. We are proud to share the results of our Gender Equality Index for 2025, where we achieved an overall score of 91/100. This score reflects our ongoing efforts to ensure genuine fairness among our employees. > A closer look at our 2025 indicators The index is broken down into several key indicators that allow us to assess our

Just released: “2025 Annual Overview” by the EERA Joint Program on Photovoltaic Solar Energy (EERA-PV). This landmark publication provides a comprehensive snapshot of the research, innovations, and project milestones delivered by the EERA-PV network throughout 2025. Its mission? To accelerate the development of photovoltaic technology into a large-scale, cost-competitive, and reliable energy source for Europe. ✨ IPVF in the Spotlight The Institut Photovoltaïque d’Île-de-France (IPVF) is honored to be part of this collective effort. We would