记者10月20日从复旦大学获悉，该校智能材料与未来能源创新学院青年研究员梁佳团队研发出锡基钙钛 矿太阳能电池，其实现全生命周期无害化，突破了该领域光电转换效率的世界纪录。这一创新成果攻克 了无铅、可持续绿色光伏技术领域的关键难题，标志着我国在清洁能源材料领域再获突破。相关论文日 前在线发表于《自然》。 长久以来，科研人员重点关注提升铅基钙钛矿太阳能电池效率，但其可能带来的铅污染始终如"达摩克 利斯之剑"般悬于头顶。锡基钙钛矿太阳能电池虽绿色无害，但器件的稳定性和光电转换效率却比较 低。 针对这一问题，梁佳团队提出了一种巧妙的"双层空穴传输层"结构。该结构以稳定性优异的氧化镍为底 层基底，并在其上构筑一层自组装单分子层，从而形成均一且功能协同的复合功能层。"氧化镍与钙钛 矿直接接触，表面的氧空位会引起锡基钙钛矿的分解，自组装的分子层能够分隔开氧化镍与钙钛 矿。"梁佳解释。 梁佳介绍，研究团队过去5年围绕缺陷调控、界面优化、载流子抽取等关键科学问题持续攻关，系统建 立了从材料生长到能带调控、界面工程的完整技术体系，最终成功制备出绿色环保和转换高效的锡基钙 钛矿太阳能电池。经第三方权威认证，该太阳能电池光电转换效率 ...

阿拉伯贸易网10月20日报道，复旦大学研发全球效率最高的锡基钙钛矿太阳能电池，转换效率17.7%， 无毒环保。研究成果发表于《自然》，有望广泛用于建筑光伏与可穿戴设备，标志绿色能源新里程 （002219）碑。 ...

Core 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].

Group 1 - The world's first sub-angstrom snapshot spectral imaging chip "Yuheng" has been developed by a team led by Professor Fang Lu from Tsinghua University, marking a significant advancement in intelligent photonics technology for high-precision imaging and measurement [2] - The RoboChallenge, the first large-scale, multi-task benchmark test for real robots operating in real physical environments, has been launched, providing reliable and comparable evaluation standards for visual language action models in robotics [2] Group 2 - A new type of artificial muscle developed by a research team from Ulsan National Institute of Science and Technology can switch between "soft and flexible" and "hard and powerful" states, capable of lifting objects weighing 4,000 times its own weight, which may advance soft robotics, wearable devices, and medical assistive technologies [4][5] - Fudan University has developed a tin-based perovskite solar cell that achieves a world record light-to-electricity conversion efficiency of 17.7% while being environmentally friendly throughout its lifecycle [5] - The "Linglong No. 1" modular small reactor has successfully completed its cold test, laying a solid foundation for subsequent fuel loading and commercial operation, with an expected annual power generation of 1 billion kWh, sufficient to meet the electricity needs of 526,000 households in Hainan and reduce carbon emissions by approximately 880,000 tons [5]