化学学报 ›› 2025, Vol. 83 ›› Issue (6): 639-654.DOI: 10.6023/A25010004 上一篇    

综述

手性超分子组装圆偏振室温磷光材料的研究进展

潘禹州, 殷炜杰, 张雨霞*()   

  1. 南京邮电大学信息材料与纳米技术研究院/材料科学与工程学院 南京 210000
  • 投稿日期:2025-01-02 发布日期:2025-03-24
  • 作者简介:

    潘禹州, 南京邮电大学有机电子与信息显示国家重点实验室及先进材料研究所材料科学与工程学院材料物理专业大三本科生, 国家励志奖学金获得者. 包括中国国际大学生创新大赛全国金奖在内的国家级省级奖项6项, 本科期间申请发表专利4件, 发表SCI论文一篇. 研究方向主要集中在手性聚合物光电材料的设计与合成, 以及圆偏振电致发光的应用研究.

    殷炜杰, 南京邮电大学有机电子与信息显示国家重点实验室及先进材料研究所材料科学与工程学院材料物理专业大三本科生, 曾获鼓楼绿色低碳奖学金, 主持1项国家级大创项目, 获得包括中国国际大学生创新大赛全国金奖在内的国家级省级奖项5项, 本科期间申请发表专利1件, 研究方向主要集中在小分子光电功能材料设计及圆偏振有机发光二极管应用研究.

    张雨霞, 2022年在南京大学成义祥教授的指导下获得博士学位. 目前任职南京邮电大学有机电子与信息显示国家重点实验室及先进材料研究所的讲师、校聘副教授, 硕士生导师. 研究方向主要集中在手性聚合物光电材料的设计与合成及其圆偏振电致发光器件.

  • 基金资助:
    国家自然科学基金(62305172); 江苏省高校自然科学基金(23KJB430026); 南京邮电大学人才引进自然科学研究启动基金(NY223052)

Research Progress of Circularly Polarized Room-temperature Phosphorescent Materials based on Chiral Supramolecular Assembly

Yuzhou Pan, Weijie Yin, Yuxia Zhang*()   

  1. Institute of Advanced Materials/School of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210000
  • Received:2025-01-02 Published:2025-03-24
  • Contact: *E-mail: iamyxzhang@njupt.edu.cn
  • Supported by:
    National Natural Science Foundation of China(62305172); Natural Science Fund for Colleges and Universities in Jiangsu Province(23KJB430026); Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications(NY223052)

圆偏振室温磷光(CP-RTP)材料因其优异的光学灵敏度和空间分辨率, 在三维显示、防伪和信息存储等领域展现出广泛的应用潜力. 然而, 提升CP-RTP材料的发光不对称因子(glum)依然面临挑战. 近年来, 研究者们发现手性超分子组装策略能够提供高阶有序的排列方式, 从而有利于实现更高的glum值. 分析了手性超分子组装体系中螺旋结构对材料光物理性质的影响, 总结了近年来手性超分子室温磷光材料的研究进展及其在信息加密和安全防伪等领域的应用.

关键词: 手性超分子组装, 圆偏振发光, 室温磷光, 圆偏振发光不对称因子, 分子间相互作用, 液晶

Circularly polarized room-temperature phosphorescence (CP-RTP) materials have garnered significant attention due to their exceptional optical sensitivity and spatial resolution, making them highly promising for a wide array of applications, such as three-dimensional displays, anti-counterfeiting, and information storage. Generally, the polarization magnitude is quantified by the luminescence dissymmetry factor (glum), which has a value between -2 and 2. However, while chiral organic RTP materials often demonstrate higher luminous efficiency, they typically display remarkably low glum values, generally in the order of 10-5 to 10-3, owing to their inherently weak magnetic transition dipole moment. This limitation significantly hinders the practical application of high-performance CP-RTP materials. Therefore, enhancing the glum values of CP-RTP materials remains a substantial challenge. With the rapid advancement of chiral supramolecular assembly, researchers have discovered that this system can construct long-range ordered helical nanostructures by precisely regulating intermolecular interactions, such as π-π stacking and hydrogen bonding. This approach facilitates the attainment of a high glum value while maintaining favorable luminous efficiency. Meanwhile, the processes of chiral self-assembly or co-assembly frequently involve chiral transfer, chiral induction, and intermolecular Förster resonance energy transfer. These processes are advantageous for inducing achiral dyes to achieve CP-RTP. This dramatically simplifies the synthesis of CP-RTP materials, circumventing the often-complex and costly preparation of intrinsically chiral RTP chromophores. Consequently, chiral supramolecular assembly systems have emerged as a highly effective strategy for the development of CP-RTP materials exhibiting substantially improved glum values. This review comprehensively examines the influence of helical structures on the photophysical properties of chiral supramolecular assembly systems, summarizing recent progress in the design, synthesis, and application of chiral supramolecular RTP materials, with a particular focus on their exploitation in advanced information encryption and anti-counterfeiting technologies. We delve into the underlying mechanisms driving enhanced circular polarization and discuss future directions for this rapidly evolving field.

Key words: chiral supramolecular assembly, circularly polarized luminescence, room temperature phosphorescence, circular polarization luminescence dissymmetry factor, intermolecular interactions, liquid crystal