Core Viewpoint - The latest research from Wuhan University has introduced a breakthrough in perovskite solar cells, achieving a power conversion efficiency of 27.1% and demonstrating significant stability under high-temperature conditions [1] Group 1: Research Achievements - The research team led by Professor Wang Zhiping has developed an "atomic-scale interface bonding" technology that incorporates a tunable hafnium oxide (HfOx) interlayer using atomic layer deposition [1] - This innovation synchronizes the stabilization of hole and electron transport interfaces at the atomic level, addressing the long-standing challenge of improving both efficiency and stability in perovskite solar cells [1] Group 2: Performance Metrics - The p-i-n type perovskite solar cells produced using this technology achieved a certified efficiency of 26.6% [1] - After operating at 85°C under continuous one-sun illumination for over 5000 hours, the cells maintained more than 90% of their initial efficiency, with a high-temperature operational lifespan (T90) reaching 25 times that of control devices [1]