为营造浓厚的学术氛围，由材料科学与工程学院主办、先进高分子材料研究所承办的“材智荟·大讲堂”讲坛，将邀请澳大利亚弗林德斯大学大学（Flinders University）Mats Andersson教授为广大研究生作学术报告。欢迎广大师生积极参加！
报告主题：Unconventionally low donor content in efficient polymer solar cells and photocatalytic nanoparticles
报告人：Mats Andersson 教授
报告时间：2025年7月9日上午 10: 30
报告地点：主校区材料学院教学楼207报告厅
报告人简介：
Mats Andersson performed a joint PhD-work at the Departments of Organic Chemistry and Polymer Technology, Chalmers University of Technology, Gothenburg, Sweden, and received his PhD in Organic Chemistry in 1995. He was appointed Professor in Polymer Chemistry in 2004, and he held a chair in Polymer Chemistry from 2007 to 2015. In 2012, he was elected to the Royal Swedish Academy of Engineering Sciences. In 2013, he was awarded a South Australian Chair in Energy, and in 2014, Mats moved to Adelaide, Australia, to join the University of South Australia as a Research Professor. In 2017, he moved to Flinders University, Adelaide, as a Matthew Flinders Professor, and he is currently the director of the Flinders Institute for Nanoscale Science and Technology. His research interests focus on structure–property relationships of different functional materials. Currently, his research includes printed polymer solar cells, new antifouling coatings, single-atom electrochemical catalysis and photocatalytic hydrogen evolution. Mats教授主要聚焦不同功能材料的结构-性能关系，目前重点研究方向包括：印刷聚合物太阳能电池、新型防污涂层、单原子电化学催化及光催化析氢技术。在国际知名期刊如Angew. Chem. Int. Ed、Nano Energy、Adv. Mater.、Nano-Micro Letters、Joule、Energy Environ. Sci.等发表论文350余篇，总引用超25600次，H-index达到82。
报告题目：Unconventionally low donor content in efficient polymer solar cells and photocatalytic nanoparticles
报告摘要：Polymer solar cells have gained considerable interest during the last decades. Over the last years, the photovoltaic performance has increased rapidly with high power conversion for lab-scale devices. Our efforts have mainly been focused on the design and synthesis of new materials, but also on morphology control and printing of solar cells. The thermal stability of solar cell materials and interfaces is a prerequisite, as solar cells are often exposed to elevated temperatures during fabrication and operation. Our work includes morphology studied by dynamic mechanical thermal analysis (DMA). Compared to normal DMA measurements, the materials are deposited onto a supporting substrate. The technique is a highly sensitive method for determining the Tg of materials, including sub-Tg transitions and melting points.
Completely amorphous indacenodithiophene based polymers were synthesized and used in solar cells combined with the Y6 acceptor material. Low donor: acceptor (D:A) ratios are generally believed to yield lower efficiency than the more conventional 1:1.2 ratio. However, the solar cells exhibit a peak performance over 11% PCE at a D:A ratio of 1:5. Unexpectedly, as the polymer proportion increases, a reduced photovoltaic performance is observed. Similarly, nanoparticles made of the materials and used for photocatalytic hydrogen evolution show an analogous trend with a peak performance at a D:A ratio of 1:6.7.
材料科学与工程学院
先进高分子材料研究所
2024年6月25日
