Oxford Photovoltaics Limited

Oxford Photovoltaics Limited develops and commercialises perovskite-on-silicon tandem solar technology. Its tandem cells combine a thin perovskite-based cell on the front of a conventional silicon cell, with perovskite absorbing higher-energy blue light and silicon capturing lower-energy red light. The company supplies commercial tandem solar modules for mainstream utility solar and supports specialty applications in buildings, aerospace, and electric vehicles. Its modules have achieved 25% efficiency, and the technology is intended to generate more energy per area or per weight than conventional silicon solar products. The company also offers licensing for perovskite photovoltaic technology.

Founded in 2010 as a spin-out from Professor Henry Snaith’s laboratory at the University of Oxford, the business operates research and development at its Oxford headquarters and a pilot and production line in Brandenburg an der Havel. These operations transfer tandem cell technology into industrial-scale manufacturing. Perovskite is synthesised from readily available materials and can use existing industrial coating processes, supporting scalable production. The company reports more than 400 granted patents in perovskite-based photovoltaics. In 2024, it shipped tandem solar modules to a customer, following production of its first commercial-size perovskite-silicon tandem cell in 2017. Its roadmap targets 27% module efficiency by 2027 and 30% by 2030.