高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

主客体掺杂下三联吡啶苯硼酸聚集态调控长寿命室温磷光

曾明涛1，史文静2，王军1
  

  1. 1. 贵州师范大学化学与材料科学学院 2. 思南县第八中学，思南565100
  • 收稿日期:2026-03-14 修回日期:2026-05-11 出版日期:2026-05-14 发布日期:2026-05-14
  • 通讯作者: 王军 E-mail:wjc@gznu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号：22161012)和贵州省科学技术厅面上基金(批准号：黔科合基础MS[2026]445)资助

Modulation of Long-Lived Room-Temperature Phosphorecence via Aggregation-State Control of a Terpyridine–Phenylboronic Acid Derivative in a Host–Guest Doping System

ZENG Mingtao1, SHI Wenjing2, WANG Jun1*   

  1. 1. College of Chemistry and Material Science, GuiZhou Normal University 2. The No. 8 Senior High School of Sinan County
  • Received:2026-03-14 Revised:2026-05-11 Online:2026-05-14 Published:2026-05-14
  • Supported by:
    Supported by the National Natural Science Foundation of China(No. 22161012) and the Technology Program of Guizhou Province(No. Qiankehejichu-MS[2026]445)

PDF (PC)

补充材料

1

摘要： 摘要 研究了4-(([2,2':6',2''-三联吡啶]-4'-基)苯基)硼酸(B-Tpy)在不同聚集状态下的光物理性能. 核磁滴定和荧光光谱分析确证B-Tpy具有聚集诱导发光特性. 固态B-Tpy仅发射蓝色荧光(401 nm)，寿命和量子产率分别为2.89 ns，2.79%. B-Tpy与硼酸(BA)掺杂并经热处理(200 °C)后，复合材料展现出荧光和室温磷光(RTP)双态发射，余辉长达24 s，RTP寿命为1.22 s. 理论计算表明，B-Tpy具有较大的自旋轨道耦合常数(ξ(S1, T1) = 6.58 cm-1)，有效促进了系间窜越过程，从而实现长寿命RTP发射. 本研究为长寿命有机RTP磷光材料提供了新的设计思路.

关键词: 有机室温磷光, 聚集诱导发光, 主客体掺杂, 双态发射

Abstract: The photophysical properties of 4-(([2,2′:6′,2″-terpyridin]-4′-yl)phenyl)boronic acid (B-Tpy) under different aggregation states have been investigated. 1H NMR titration and fluorescence spectroscopy have been employed to confirm the aggregation-induced emission (AIE) characteristics. Solid-state B-Tpy exhibits blue fluorescence at 401 nm, with a lifetime of 2.89 ns and a quantum yield of 2.79%. Following the introduction of B-Tpy into boric acid (BA) and subsequent application of thermal treatment at 200 °C, the resultant composite material exhibits dual emission of fluorescence and room-temperature phosphorescence (RTP), with an afterglow duration of up to 24 s. Quantitative calculations indicate that B-Tpy possesses a significant spin-orbit coupling constant (ξ(S1, T1) = 6.58 cm-1), which promotes intersystem crossing, thereby facilitating long-lived RTP emission. This study proposes a novel strategy for long-lived RTP materials.

Key words: Organic RTP, AIE, Host-guest doping, Dual-state emission

中图分类号: 

TrendMD: