"Korean Researchers' Breakthrough Enhances Perovskite Solar Cell Efficiency and Stability"
Researchers at UNIST and Korea University have made significant advancements in the stability and efficiency of perovskite solar cells (PSCs) by developing a novel cathode interlayer using amine-functionalized perylene diimide (PDINN). This breakthrough not only enhances the potential for commercializing PSCs but also shows promising implications for green hydrogen production technology. The PV device achieved an impressive efficiency of 23.21%, with over 81% retention after 750 hours of operation at 60 °C, and more than 90% retention after 3100 hours at 23 ± 4 °C. Additionally, the TLHP-based PEC devices exhibited a record-high bias-free solar hydrogen production rate of 33.0 mA cm−2, approximately 1.7-fold higher than the target set by the U.S. Department of Energy for one-sun hydrogen production.