TYN(SZ:000591) Zhong Guo Hua Gong Bao·2025-10-20 03:23Core Viewpoint - The development of lead-free tin-based perovskite solar cells by a research team at Fudan University marks a significant breakthrough in sustainable photovoltaic technology, addressing environmental and health concerns associated with lead-based solar cells [1][2]. Group 1: Research and Development - The research team has successfully developed a tin-based perovskite solar cell with a power conversion efficiency of 17.7%, overcoming challenges related to oxidation, structural stability, and interface defects that have historically hindered performance [2]. - The team established a comprehensive technical system covering material growth, energy band regulation, and interface engineering, enabling the production of high-quality tin-based perovskite films on a larger scale [2]. Group 2: Economic and Technical Advantages - Tin-based solar cells are projected to have significantly lower theoretical costs compared to silicon-based cells and are compatible with flexible substrates and roll-to-roll manufacturing processes [2]. - The bandgap of the tin-based system is closer to the ideal value for photovoltaic materials, facilitating high power conversion efficiency and cost-effective large-area production [2]. Group 3: Future Directions - The research team aims to collaborate with industry partners to advance the commercialization of tin-based perovskite solar cells, targeting applications in building-integrated photovoltaics, wearable energy devices, automotive rooftops, and off-grid clean energy systems [3].