The Dutch research organization TNO, in collaboration with thin-film specialist ASAT, has unveiled a pioneering solar roof tile featuring flexible perovskite technology. This innovation marks the first time a curved composite tile has been successfully integrated with a perovskite solar module, achieving a conversion efficiency of 12.4%. Designed for seamless integration into the built environment, the technology utilizes industrial-ready roll-to-roll production methods. This breakthrough represents a significant advancement in sustainable architecture, offering a pathway to generate electricity without compromising the aesthetic appeal of modern building designs.
Researchers at TNO have reached a significant milestone in renewable energy by developing what they describe as the world’s first electrically functioning solar roof tile based on flexible perovskite solar cells. By applying a perovskite PV module on foil to a curved composite tile structure, the team demonstrated that solar harvesting can be integrated directly into traditional building materials. The combined unit reached a conversion efficiency of 12.4%, while the individual modules maintained a 13.8% efficiency prior to being mounted on the curved surface.
According to TNO senior scientist Ilke Dogan, the curved geometry of the tile had a negligible impact on the performance of the solar module. This achievement highlights the versatility of flexible perovskite technology, which allows for the creation of solar-active surfaces that do not sacrifice design or aesthetics. The project signifies a shift toward more effective integration of solar energy into urban infrastructure, moving beyond traditional rigid panels.
The manufacturing processes utilized in this trial are already optimized for industrial scaling. TNO confirmed that the materials are suitable for large-scale roll-to-roll production of flexible solar foils, a method that supports both mass manufacturing and customized building solutions. The development process spanned from laboratory testing of small solar cells to the creation of 10 by 10-centimeter modules, culminating in the fully functional roof tile ready for practical application.
Karl Kiel, the founder of ASAT, noted that this successful demonstration indicates that a commercial launch for these integrated tiles is expected in the near future. While the technology is nearing market readiness, TNO plans to focus its upcoming research on enhancing the long-term reliability, lifetime, and scalability of the modules to ensure they meet the rigorous demands of the construction industry.
To facilitate the transition from the lab to the marketplace, TNO recently launched Perovion Technologies. This spin-out company will spearhead the commercialization of flexible perovskite technologies, aiming to transform roofs and other infrastructure into active power-generating assets.