报告题目：Charge Transport Physics of Conducting Ploymers at High Charge Carrier Densities 

报告人：Henning Sirringhaus（Cavendish Laboratory, University of Cambridge） 

报告时间：8月11日 15:00

报告地点：39-A112

报告摘要：The complex charge transport physics of conjugated polymers has been studied intensively since the Nobel Prize winning discovery of the electrical conduction in doped polyacetylene by Heeger, MacDiarmid and Shirakawa in 1977. At low charge densities < 1018-1019 cm-3, that are relevant for light-emitting diodes, solar cells or field-effect transistors, the charge transport physics of conjugated polymers is governed by static energetic disorder caused by structural heterogeneity and dynamic disorder due to molecular vibrations. However, organic electrochemical transistors (OECTs) and thermoelectric converters are examples of organic devices that operate at much higher charge carrier concentrations on the order of 1020-1021 cm3 approaching the density of molecular units. Understanding the charge transport in this regime, where the repulsive Coulombic electron-electron interactions and the attractive interactions between the mobile charge carriers and the charge-balancing counterions need to be considered, poses new challenges. In this presentation we will provide an overview over the current understanding of the key factors that govern charge transport in this ultrahigh carrier density regime and give examples of how better fundamental understanding of the relevant transport physics, using techniques, such as the Hall effect, can lead to significant enhancements in the charge transport and thermoelectric properties of these materials. 

报告人简介：海宁·瑞林豪斯，剑桥大学、卡文迪许实验室。英国皇家学会院士、美国材料研究学会会士、中国化学会荣誉会士、剑桥大学丘吉尔台湾自拍av院士。现任英国剑桥大学卡文迪许实验室电子器件物理学教授、微电子与光电子研究团队负责人，是国际有机电子学、柔性电子和印刷电子领域的杰出科学家，国际公认的有机电子学领域的开创者之一。先后荣获英国皇家学会穆拉德奖、英国皇家学会休斯奖章、英国物理学会法拉第奖章等国际重要学术奖励。2020年，他被授予英国皇家学会最高学术荣誉——皇家学会研究教授席位。一直与中国科台湾自拍av化学研究所、清华大学、北京大学、复旦大学、南京大学、华东理工大学、苏州大学等高校和科研机构保持长期合作。2010年入选中国科台湾自拍av外国专家特聘研究员，在中国科台湾自拍av化学研究所开展合作研究，积极推动中英联合科研项目和国际合作平台建设。迄今发表学术论文600余篇，在Nature、Science、Nature Materials、Nature Physics、Nature Electronics、Nature Nanotechnology等国际顶级学术期刊发表多项代表性成果，论文被引用超过78000次，H因子122，拥有授权专利50余项，并多次入选汤森路透全球高被引科学家。