关于影响共轭聚合物薄膜手性光学响应的因素

On the factors influencing the chiroptical response of conjugated polymer thin films.

作者信息

Laidlaw Beth, Eng Julien, Wade Jessica, Shi Xingyuan, Salerno Francesco, Fuchter Matthew J, Penfold Thomas J

机构信息

Chemistry - School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.

Department of Materials, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.

出版信息

Chem Commun (Camb). 2021 Sep 28;57(77):9914-9917. doi: 10.1039/d1cc02918e.

DOI:10.1039/d1cc02918e

PMID:34498020

Abstract

We study the influence of the physical and chemical structure on the chiroptical response of fluorene-based polymeric systems, namely poly(9,9-dioctylfluorene) (PFO) and the donor-acceptor type copolymer poly(9,9-dioctylfluorene--benzothiadiazole) (F8BT). We reveal the significance of electric-magnetic coupling, at both short (molecular-level) and intermediate (delocalised over multiple polymer chains) length scales, on the magnitude of the dissymmetry. These findings provide a framework for the design of new materials with an enhanced chiroptical response.

摘要

我们研究了物理和化学结构对芴基聚合物体系（即聚（9,9-二辛基芴）（PFO）和供体-受体型共聚物聚（9,9-二辛基芴-苯并噻二唑）（F8BT））的手性光学响应的影响。我们揭示了在短（分子水平）和中（在多个聚合物链上离域）长度尺度上，电磁耦合对不对称度大小的重要性。这些发现为设计具有增强手性光学响应的新材料提供了一个框架。