Revolutionizing Solar Efficiency with Roll-to-Roll Lithography

• Unlock solar potential with PERSEUS: Revolutionizing perovskite efficiency through innovative surface structures and R2R-NIL technology for seamless, aesthetic solar integration in urban landscapes.

The EU-funded PERSEUS project, running from January 2025 to December 2027, aims to enhance perovskite solar cell efficiency through innovative surface structures developed by Fraunhofer FEP. Utilizing roll-to-roll nanoimprint lithography (R2R-NIL), the project seeks to minimize reflection losses and improve solar cell performance. This technology, which allows for large-scale production of optically effective surfaces, is being integrated into building-integrated photovoltaic (BIPV) modules, offering aesthetic solutions that blend PV-active and non-active facade areas. The project involves collaboration with 16 partners to develop cost-effective production methods for indoor and outdoor photovoltaic applications.

R2R-NIL technology, capable of fabricating surface topographies on polymer films, offers diverse applications beyond photovoltaics, including antifouling, anti-reflective coatings, and medical engineering. The process involves pressing a structured master roller into a liquid coating, which is then cured using electron beams, allowing for high productivity and flexibility in integrating pigments or particles. Fraunhofer FEP's expertise in coating flexible substrates and its atmoFlex system enable efficient production under atmospheric conditions. Project PERSEUS aims to establish a foundation for perovskite production in Europe, demonstrating large-area architectures for various industries, including floating and urban photovoltaics.

How will the PERSEUS project revolutionize perovskite solar cell efficiency and production in Europe?

• Enhanced Efficiency: The PERSEUS project is set to revolutionize perovskite solar cell efficiency by utilizing innovative surface structures that significantly reduce reflection losses. This enhancement is crucial for maximizing the amount of sunlight converted into electricity, thereby improving the overall performance of solar cells.
• Advanced Manufacturing Techniques: By employing roll-to-roll nanoimprint lithography (R2R-NIL), the project facilitates the large-scale production of optically effective surfaces. This method not only boosts efficiency but also allows for the rapid and cost-effective manufacturing of solar cells, making them more accessible and affordable.
• Integration into Building-Integrated Photovoltaics (BIPV): The project aims to seamlessly integrate perovskite solar cells into building facades, offering aesthetic solutions that blend active and non-active areas. This integration supports the development of energy-efficient buildings and urban environments, contributing to sustainable urban planning.
• Collaboration and Innovation: With 16 partners involved, the PERSEUS project fosters collaboration across various sectors, encouraging the exchange of knowledge and expertise. This collaborative approach is expected to drive innovation and accelerate the development of new technologies and applications for perovskite solar cells.
• Diverse Applications: Beyond traditional photovoltaic applications, the R2R-NIL technology used in the project has potential applications in other fields, such as antifouling, anti-reflective coatings, and medical engineering. This versatility could lead to new market opportunities and further advancements in related industries.
• Foundation for European Production: By establishing a robust foundation for perovskite production in Europe, the PERSEUS project aims to reduce dependency on imports and strengthen the continent's position in the global renewable energy market. This initiative supports the EU's goals for energy independence and sustainability.
• Large-Area Architectures: The project demonstrates the feasibility of large-area architectures for various photovoltaic applications, including floating and urban photovoltaics. This capability is essential for scaling up production and meeting the growing demand for renewable energy solutions.
• Environmental and Economic Benefits: The advancements in perovskite solar cell technology and production methods are expected to lead to significant environmental benefits by reducing carbon emissions. Additionally, the project could stimulate economic growth by creating new jobs and industries related to renewable energy technologies.