高等学校化学学报 ›› 2026, Vol. 47 ›› Issue (5): 20260075.doi: 10.7503/cjcu20260075

• 研究论文 • 上一篇    下一篇

基于簇发光的延迟荧光模板

袁乐天, 郭佳晨, 武桐玥, 高水涛, 黄建滨, 阎云()   

  1. 北京大学化学与分子工程学院, 北京分子科学国家实验室, 北京 100871
  • 收稿日期:2026-02-08 出版日期:2026-05-10 发布日期:2026-04-09
  • 通讯作者: 阎云 E-mail:yunyan@pku.edu.cn
  • 作者简介:第一联系人:共同第一作者.
  • 基金资助:
    国家自然科学基金(22332001)

Template for Delayed Fluorescence Based on Clusteroluminescence

YUAN Letian, GUO Jiachen, WU Tongyue, GAO Shuitao, HUANG Jianbin, YAN Yun()   

  1. Beijing National Laboratory for Molecular Sciences (BNLMS),College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
  • Received:2026-02-08 Online:2026-05-10 Published:2026-04-09
  • Contact: YAN Yun E-mail:yunyan@pku.edu.cn
  • Supported by:
    the Key Project of the National Natural Science Foundation of China(22332001)

摘要:

通过压力诱导静电组装的方式构建了一种可作为“延迟荧光模板”的簇发光材料. 阴离子聚丙烯酰胺(APAM)与聚六亚甲基双胍盐酸盐(PHMB)的静电复合物在压力作用下形成块体材料. 材料中胍基与羧酸根、 酰胺基团之间通过静电和氢键作用紧密结合, 通过空间作用表现出簇发光. 由于嵌入其中的荧光染料能够与两种高分子中的任意一种发生静电作用或极化作用, 不同类型的染料分子被引入该材料后, 均表现出延迟荧光, 如模板一样激活任意荧光分子的延迟荧光性能. 通过将不同荧光染料嵌入模板中, 可实现动态磷光防伪. 本文研究结果为延迟荧光的实现与应用提供了新的思路与平台.

关键词: 延迟荧光, 簇发光, 磷光共振能量转移

Abstract:

A clusteroluminescent material serving as a “delayed fluorescence template” was constructed via pressure-induced electrostatic assembly. Bulk materials were formed through the electrostatic complexation of anionic polyacrylamide(APAM) and polyhexamethylene biguanide hydrochloride(PHMB). Within this matrix, guanidyl, carboxylate, and amide groups are tightly interconnected via electrostatic and hydrogen bonding interactions, facilitating clusteroluminescence through through-space interactions. Notably, the embedded fluorescent dyes interact with either polymer component through electrostatic or polarization effects. Consequently, upon the incorporation of various dyes, the material exhibits delayed fluorescence, effectively acting as a template that activates this property in diverse fluorophores. By embedding distinct dyes, dynamic phosphorescent anti-counterfeiting applications are realized. This work provides a novel strategy and platform for the realization and application of delayed fluorescence.

Key words: Delayed fluorescence, Clusteroluminescence, Phosphorescence resonance energy transfer

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