Overview

• The team used rubidium chloride, DMOAI and PEACl to reduce defect traps and tune a 1.75 eV bandgap for indoor light harvesting
• Prototype cells converted 37.6% of 1000 lux illumination into electricity—about six times the efficiency of top commercial indoor solar products
• Durability trials showed 92% performance retention after over 100 days and 76% efficiency after 300 hours at 55 °C under continuous light
• Findings published in Advanced Functional Materials involved collaborators in China and Switzerland and funding from EPSRC, the UK Department for Energy Security and Net Zero, and the Henry Royce Institute
• Researchers are in discussions with undisclosed industry partners on production scale-up and real-world validation, with manufacturing and field testing still to be addressed