报告题目 (Title)：Singlet Fission Dynamics in Cyclopentadithiophenes（双噻吩环戊烷分子中的单态裂变动力学）

报告人 (Speaker)： 闻瑾 研究员（东华大学）

报告时间 (Time)：2022年10月10日(周一) 19:00

报告地点 (Place)：在线腾讯会议（778-294-657）

邀请人(Inviter)：李永乐 副教授

主办部门：理学院物理系

报告摘要：Singlet fission (SF) is a down-conversion photophysical process, in which a singlet exciton splits into a spin-correlated multiexciton, followed by dissociation into two independent states. Conventionally, SF has been mediated through the intermolecular interaction that has been realized only in a few molecules, which are, however, not efficient enough for practical applications. We propose to manipulate the planarity of thienoquinoid-based compounds by adjusting electron push-pull effects in aim of designing new materials for SF. Following this design principle, a few compounds have been synthesized as candidates and characterized by ultrafast spectroscopy in this study.