Overview

• Researchers report perovskite solar cells that convert up to 37.6% of indoor illumination to electricity and retain about 92% of output after 100 days.
• The cells are cited as up to six times more effective than silicon-based alternatives under typical room lighting, according to coverage referencing Live Science.
• Rubidium chloride helps produce more uniform crystals, reducing electronic traps that undermine performance and longevity in perovskite materials.
• The technology targets battery-free operation for low-power devices such as keyboards, sensors and small alarms, pending longer-term durability data and real-world trials.
• Production is presented as cost-effective and scalable—likened to newspaper printing—with researchers saying they are in early discussions with industry partners; a separate Swedish firm, Exeger, already sells indoor light-harvesting films for consumer products.