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Conjugated oligomers and polymers with functionalized side chains: tuning the pi - pi interactions and the optoelectronic properties

具有功能化侧链的共轭低聚物和聚合物：调节 pi - pi 相互作用和光电性能

基本信息

批准号：
332723289
负责人：
Professor Dr. Helmut Zacharias
金额：
--
依托单位：
Institute of Chemistry
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2016
资助国家：
德国
起止时间：
2015-12-31 至 2021-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/332723289?language=en
关键词：
Conjugated oligomers polymers functionalized side

项目摘要

In this project oligomers and polymers based on thiophene containing conjugated building blocks will be functionalized by various side groups. The influence of such specific side groups on the pi, pi stacking and the energy levels will be investigated by optical and two-photon photoelectron spectroscopy. Specifically, we aim to evaluate the roles and influences of different types of side groups for (i) the development of new approaches to tune the assembly structures and optoelectronic functions of conjugated oligomers and polymers, (ii) for the formation of new optoelectronic materials which can be used for different devices including sensors, and (iii) for the generation of two dimensional conjugated systems via chemical reaction or metal ion coordination of the functional groups in the side chains. These goals will be pursued in close collaboration with the Institute for Chemistry, Chinese Academy of Sciences (ICCAS), Beijing, where the functionalized organic systems will be synthesized. The electronic properties of these systems will be analyzed by (time-resolved) optical and two-photon photoelectron spectroscopy. This last method allows to determine the energetic position of occupied and unoccupied levels. The relative position of singlet and triplet states and the electronic energy transfer between them is of specific interest.

在这个项目中，基于噻吩的低聚物和聚合物含有共轭结构单元，将被各种侧基官能化。这些特殊的侧基对π，π堆积和能级的影响将通过光学和双光子光电子能谱进行研究。具体来说，我们的目标是评估不同类型的侧基的作用和影响，用于（i）开发新的方法来调整共轭低聚物和聚合物的组装结构和光电功能，（ii）用于形成可用于包括传感器在内的不同器件的新型光电材料，和（iii）用于通过侧链中官能团的化学反应或金属离子配位产生二维共轭体系。这些目标将与北京中国科学院化学研究所密切合作实现，那里将合成功能化的有机系统。这些系统的电子特性将通过（时间分辨）光学和双光子光电子能谱进行分析。最后一种方法允许确定被占用和未被占用的能级的能量位置。单重态和三重态的相对位置以及它们之间的电子能量转移是特别感兴趣的。