摘要
空间电荷转移高分子荧光材料是利用非共轭高分子骨架实现电子给体与电子受体的空间π-堆积,继而通过空间电荷转移发光的高分子荧光材料,无论是在化学结构还是在发光本质方面均有别于基于共轭高分子骨架和化学键电荷转移发光的经典高分子荧光材料,已经成为发展高分子荧光材料的新途径.本文围绕空间电荷转移效应的实现、发光特性调控及其器件应用三个方面,总结空间电荷转移高分子荧光材料与器件方面的研究进展,重点讨论给体与受体空间相互作用的调控途径,包括给体与受体的强度与平面性、作用距离与排列方式以及多重给/受体结构对空间电荷转移效应、热活化延迟荧光效应以及电致发光性能的影响规律.同时分析了空间电荷转移高分子荧光材料未来发展面临的机遇和挑战.
Through-space charge transfer polymer fluorescent materials are a kind of luminescent polymers that utilize non-conjugated polymer skeleton to realize through-space π-stacking of electron donors and acceptors, and then emit light by through-space charge transfer, which become a new way for developing luminescent polymers beyond the classical fluorescent polymers based on conjugated polymer backbone and through-bond charge transfer emission. This review summarizes the research progress of through-space charge transfer polymers in our group from the perspective of material design and device performance, and disscusses the realization, regulation and application of through-space charge transfer polymers. Meanwhile, molecular design strategies for tuning spatial interactions between donors and acceptors by modulating their strength, planarity, distance and alignment patterns, and effect of multiple donor/acceptor structures on through-space charge transfer effect, thermal activation delayed fluorescence property and electroluminescent performance, are illustrated. Finally, opportunities and challenges for the future development of through-space charge transfer polymers are also discussed.
作者
邵世洋
王利祥
Shi-yang Shao;Li-xiangWang(State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022)
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2022年第7期784-795,共12页
Acta Polymerica Sinica
基金
国家自然科学基金(基金号52122309,52073282,51833009)
中国科学院青年创新促进会优秀会员(项目号2015180)资助项目。
关键词
空间电荷转移
高分子荧光材料
给/受体结构
有机电致发光
Through-space charge transfer
Luminescent polymer
Donor/acceptor structure
Organic electroluminescence
