Photoinduced excimer generation in perylene diimide dimer:effects of solvent polarity[Invited]

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外文摘要：The aggregation and photoinduced excited state dynamics of organic π-conjugated molecules play a vital role in solar energy conversion and applications.This work investigates how solvent polarity affects the aggregation behavior and the photophysical process of perylene diimide dimer[PDI-Ⅱ].The results show that the conjugations between PDI intra-molecular chromophores are more likely to generate excimer,and the conjugations between PDI intermolecular chromo-phores are more likely to experience symmetry-breaking charge separation.Our study can provide a reference for the design of high-efficiency solar energy conversion materials.

外文关键词：

excimerperylene diimidedimersolvent effecttransient absorption spectroscopy

作者：

Guangliu Ran、Hang Wang、Yujing Song、Yahui Liu、Zhishan Bo、Wenkai Zhang

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作者单位：

Department of Physics and Applied Optics Beijing Area Major Laboratory,Center for Advanced Quantum Studies,Beijing Normal University,Beijing 100875,China

College of Textiles&Clothing,Qingdao University,Qingdao 266071,China

Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875,China

基金：

国家自然科学基金

项目编号：

U2032112

出版年：

2022

DOI：

10.3788/COL202220.100009

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCDCSCDSCI

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2022.20(10)

参考文献量32