Conceptual Designs for Innovative Applications of Free-Space Luminescent Solar Concentrators

Free-space luminescent solar concentrators (FSLSCs) represent an innovative solution for harvesting solar energy, particularly in diffuse light conditions. Unlike conventional solar concentrators that depend on direct sunlight, FSLSCs utilize luminescent materials and nanophotonic structures to collect light from all directions. Through a process of photon down-shifting and advanced optical coatings, these systems efficiently convert high-energy photons into lower-energy photons that are collimated and directed toward photovoltaic (PV) modules in optical contact, enhancing energy capture and reducing thermal losses. In this study, interdisciplinary student teams at the University of Twente, as part of the “Sources of Innovation” course, were tasked with exploring novel applications of FSLSCs. The challenge encouraged students to integrate FSLSC technology into real-world infrastructure, generating creative concepts for sustainable energy solutions. Proposed designs included dual-purpose sound barriers, electric vehicle and bike charging stations, and vertical farming systems that incorporate FSLSCs to provide optimized light for agriculture while generating renewable energy. The exercise demonstrated the potential of crowd creativity to identify innovative uses for emerging technologies.