报告人：李雄 教授（华中科技大学）
邀请人：马东阁教授
报告地点：北区发光材料与器件国重实验室502室
钙钛矿太阳能电池技术产业化的机遇与挑战：稳定性及可放大化
Making Perovskite Solar Cells Ready for the Market: the Challenge of Stability and Scalability
In his presentation, starting from the fundamental understanding of the device equivalent circuit, Prof. Li will firstly emphasize a universally useful idea of a simple vacuum flash–assisted solution processing method for film morphology control to prepare high-quality perovskite films of high electronic quality over large areas. This enabled us to fabricate solar cells with an aperture area exceeding 1 square centimeter a certified PCE of 19.6%. Then he will demonstrate that chemically decorating perovskite grain surface or the mesoporous scaffold surface by bifunctional ammonium surfactants allows controlling the crystal growth and substantial enhancement in device performance and durability. Thirdly, he will introduce a strategy of using triple-layered architecture, which achieved a certified power conversion efficiency of 12.8% and was stable under outdoor tests in the hot desert climate and indoor long-term light soaking as well as heat exposure during 3 months at 80–85 0C. Finally, Prof. Li will present their recent research progress in the molecular modulators for scalable perovskite solar cells with over 20% efficiency and high operational stability. These findings open a path to realize large scale robust PSCs of high performance and stability, enabling the timely commercialization of this state-of-the-art PV device.
个人学术简介
李雄，湖北省组织部第七批“百人计划”入选者，现任华中科技大学教授，博士生导师，武汉光电国家实验室格兰泽尔介观太阳能电池研究中心成员，武汉大学化学与分子科学学院理学博士，2013-2017年瑞士洛桑联邦理工大学（EPFL）博士后，博后合作导师为欧洲科学院院士、洛桑联邦理工大学化学系Michael Grätzel教授。李雄博士于2017年7月回国，在基于染料和钙钛矿材料的光伏器件研究方面积累了丰富的知识和经验。针对新型太阳能电池产业化进程中所面临的光电转化效率、稳定性和制备成本等三项重要技术问题，李雄博士从分子设计、材料合成、界面修饰、器件优化、机理分析等角度对钙钛矿太阳能电池进行了全面深入地探索并取得一系列重要研究成果：以第一作者/共同一作或通讯作者在Science（2篇）、Nature Chemistry（1篇）等SCI期刊上发表21篇学术论文；以共同作者在Nature Energy、Nature Communications等杂志上参与发表27篇论文；已申请2项国际专利、3项欧洲专利及6项中国专利。论文SCI引用率超过2600次。