无铅太阳能电池光电转换效率实现突破

Core Insights - Fudan University's research team led by Liang Jia has developed a tin-based perovskite solar cell that achieves a world record in photoelectric conversion efficiency while being environmentally friendly throughout its lifecycle [1][2] - This innovation addresses critical challenges in lead-free and sustainable green photovoltaic technology, marking a significant breakthrough in clean energy materials in China [1] Group 1: Technological Advancements - The research team focused on defect regulation, interface optimization, and charge carrier extraction over the past five years, establishing a comprehensive technical system from material growth to energy band regulation and interface engineering [2] - The newly developed tin-based perovskite solar cell has achieved a photoelectric conversion efficiency of 17.7%, surpassing the previous record of approximately 16.5% [2] Group 2: Practical Applications - The team is conducting research on large-area cell fabrication and scalability, aiming to transition the technology from laboratory settings to practical applications [2] - High-quality tin-based perovskite films have been successfully produced at the square centimeter level, achieving record-level efficiency in large-area devices [2]