研发成功！我国太阳能电池领域再获重要进展

Core Insights - The research team led by researcher You Jingbi from the Chinese Academy of Sciences has made significant advancements in perovskite solar cells, achieving a power conversion efficiency of 27.2% for prototype devices, which enhances the stability of these cells and lays a crucial foundation for their industrial development [1] Group 1: Technological Advancements - Perovskite solar cells have rapidly improved in power conversion efficiency from an initial 3.8% to over 26% in the past decade, although they still have a gap to their theoretical limits [1] - The key to achieving high efficiency lies in the preparation of high-quality perovskite films, which have seen significant improvements in this research [1] Group 2: Performance Metrics - The quality of the perovskite films was notably enhanced, with carrier lifetimes extended to 20 microseconds and a substantial reduction in interface defect density [1] - The solar cells developed based on these films have been certified by multiple authoritative institutions, achieving a power conversion efficiency of 27.2% [1] Group 3: Stability and Longevity - In terms of stability, the solar cells maintained 86.3% of their initial efficiency after continuous operation for 1529 hours [1] - Under accelerated aging conditions at 85°C with light-thermal coupling, the cells retained 82.8% of their initial efficiency after 1000 hours of operation [1]