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基于改性苯环的有机多功能发光材料研究进展

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具有大的共轭结构的有机发光材料的光电性能与分子结构以及分子间相互作用密切相关。苯环具有稳定性高、结构简单以及结构与性能之间关系直接等特点,是研究发光体激发态性质的最佳模型化合物。但室温环境下苯是液体,在苛刻低温条件下才会成为固体。将苯环固定到各种含杂原子的环境响应性骨架中,大范围开展其凝聚态结构和激发态性质研究,将解决在不同聚集态下苯基发光体的发光机理这一重要科学问题。本文从化学改性角度首先总结了近年来通过杂环、苯环共轭拓展,苯环外围杂原子取代,苯环之间桥连和其他组合策略对苯进行化学改性的研究进展。在此基础上,按照不同发光机制综述了改性苯环在合成荧光材料、金属有机配合物或簇合物磷光材料、热激活延迟荧光材料、聚集诱导发光材料和纯有机室温磷光材料等有机多功能发光材料中的应用。最后,还展望了基于改性苯环的有机多功能发光材料未来的研究重点和发展前景。
Organic Multifunctional Luminescent Materials Based on Modified Phenyl Derivatives
The photoelectric properties of organic luminescent materials with large conjugated structures are closely related to molecular structure and intermolecular interaction.As a basic rigid conjugated unit between large π conjugation and C=X,phenyl has the characteristics of high stability,simple structure and direct relationship between structure and properties,and is the best model compound for studying the excited state properties of obtained luminescent materials.However,phenyl is a liquid at room temperature and becomes a solid at generally harsh low temperatures.Therefore,if the phenyl is fixed in a variety of environmentally responsive skeletons containing heteroatoms,and its condensed state structure and excited state properties will be effectively studied in a wide range,it will solve the important scientific problem of how the phenyl emollients can emit light under different aggregation states.In this paper,the recent advances in the modification of phenyl by heterocycles,conjugation extension of phenyl,substitution of peripheral heteroatoms,bridge between phenyl and other combined strategies are reviewed.The applications of modified phenyl in the synthesis of fluorescent materials,metal-organic complexes or clusters phosphorescent materials,thermally-activated delayed fluorescent materials,aggregation-induced luminescent materials and pure organic room temperature phosphorescent materials were reviewed according to different luminescence mechanisms.Finally,the future research focus and development prospect of organic multifunctional luminescent materials based on modified phenyl are also prospected.

phenylchemically modifiedorganic multifunctional luminescent materialsfluorescencemetal-organic complexes or clusters phosphorescencethermally activated delayed fluorescenceaggregation-induced emissionpure organic room temperature phosphorescence

邴研、姚旭森、毛兵、庄向阳、姜鸿基

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有机电子与信息显示国家重点实验室(南京邮电大学)南京 210023

聚合物分子工程国家重点实验室(复旦大学)上海 200438

发光材料与器件国家重点实验室(华南理工大学)广州 510641

化学改性 有机多功能发光材料 荧光 金属有机配合物或簇合物磷光 热活化延迟荧光 聚集诱导发光 纯有机室温磷光

2024

化学进展
中国科学院基础科学局,化学部,文献情报中心 国家自然科学基金委员会化学科学部

化学进展

CSTPCD北大核心
影响因子:1.079
ISSN:1005-281X
年,卷(期):2024.36(10)