以二苯并吩嗪为核心的聚集诱导发红光材料制备及表征  

Synthesis and Characterization of Aggregation-induced Red Emitter Based on Dibenzophenazine Core

作　　者：邢艺凡 石明恺 李芷君 李达 董林林 罗杨 赵世杰 谢天佑 王华[1] 郭鹍鹏[1] 苗艳勤[1] XING Yifan;SHI Mingkai;LI Zhijun;LI Da;DONG Linlin;LUO Yang;ZHAO Shijie;XIE Tianyou;WANG Hua;GUO Kunpeng;MIAO Yanqin(Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学新材料界面科学与工程教育部重点实验室,山西太原030024

出　　处：《发光学报》2023年第9期1588-1596,共9页Chinese Journal of Luminescence

基　　金：国家自然科学基金(62074109,6207031407);山西省科技创新人才团队项目(202204051001013)。

摘　　要：有机红光材料在全色显示、生物成像及荧光探针等方面有着重要的应用前景。本文以电子受体二苯并吩嗪为核,在其3,6位引入给电子基二苯胺衍生物,在其11,12位引入拉电子基吡啶,设计并合成了一种具有给-受体结构的化合物DBPAP。通过元素分析、核磁共振波谱和质谱对化合物的化学结构进行了表征与确认。荧光发射光谱表征发现,DBPAP在四氢呋喃和水的混合溶剂中随不良溶剂水含量增加呈现出典型的聚集诱导发光现象。基于其在固态下的有效红光发射,将DBPAP掺杂到PMMA中制备了红光LED器件。在3.8 V工作电压下,器件的最大发射波长为644 nm,CIE坐标为(0.58,0.35),最大亮度为1 616 cd·m^(-2)。该工作为发展新型固态有机红光材料提供了重要思路。Organic red emitters have attracted significant research attention owing to their promising applications in panchromatic display,biological imaging,and fluorescent probes.Herein,a fluorescent compound DBPAP was developed by introducing electron-donating group diphenylamine derivative at the positions of 3 and 6,and electronwithdrawing group pyridine at the positions of 11 and 12 of dibenzophenazine core.Its chemical structure was characterized and confirmed by elemental analysis,nuclear magnetic resonance spectroscopy and mass spectroscopy.Spectroscopic results showed that the addition of the poor solvent water to the tetrahydrofuran solution of DBPAP caused obvious aggregation-induced emission(AIE)phenomenon.Based on its efficient red emission in solid state,LED devices based on DBPAP doped PMMA were fabricated.The devices exhibited a red emission at 644 nm with Commission Internationale de L’Éclairage coordinates of(0.58,0.35),and a maximum brightness of 1616 cd·m^(-2) at a 3.8 V work voltage.This work provides a promising strategy for developing solid-state red emissive organics.

关 键 词：有机红光材料 二苯并吩嗪 给-受体 聚集诱导发光 红光LED 

分 类 号：O482.31[理学—固体物理]