含咔唑取代基喹啉铝衍生物的发光性能:一种潜在的多功能荧光传感材料（英文）  

Luminescence Properties of Carbazole-Substituted Alq_3 Derivative:a Potential Multifunctional Fluorescent Sensing Material

作　　者：张春燕[1,2] 罗建新 欧丽娟 刘勇 胡波年 喻桂鹏 潘春跃[1] ZHANG Chun-yan;LUO Jian-xin;OU Li-juan;LIU Yong;HU Bo-nian;YU Gui-peng;PAN Chun-yue(College of Chemistry and Chemical Engineering,Central South University,Changsha　410083,China;Department of Materials and Chemical Engineering,Hunan Institute of Technology,Hengyang　421002,China)

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]湖南工学院材料与化学工程学院,湖南衡阳421002

出　　处：《光谱学与光谱分析》2018年第4期1290-1297,共8页Spectroscopy and Spectral Analysis

基　　金：the National Natural Science Foundation of China(21376272,21476066);the Scientific Research Fund of Hunan Provincial Education Department(16B064,16C0430);Hengyang Science and Technology Project(2015KJ33,2016KG64);Hunan province college students’research learning and innovative experiment project;Key Laboratory of green functional building materials of Hunan Institute of Technology and the construct program of the key discipline in Hunan province

摘　　要：研究了一种含咔唑取代基喹啉铝衍生物的发光性能。首先,研究了溶剂对其发光性能的影响。研究发现,在不同溶剂体系中,Alq3衍生物在发光过程中均存在不同程度的能量传递;但是,溶剂影响Alq3衍生物的空间结构和电子结构,进而影响能量传递效率,导致激发光谱、发射光谱、荧光效率和荧光寿命均不相同。其中,甲苯起到能量传递桥梁的作用;而DMF在一定程度上阻碍能量传递。与DMF结构类似的DMA作为电子给体加入到Alq3衍生物溶液中,也起到了类似作用。另外,研究不同金属离子对Alq3衍生物发光性能的影响发现,Fe3+和Cu2+可引起Alq3衍生物的荧光猝灭,表明该Alq3衍生物可以作为多功能荧光传感材料。This work presents a study on the luminescence properties of a carbazole-substituted aluminum quinolone(Alq 3)derivative.Firstly,the effect of solvents on the luminescence properties of the Alq 3 derivative was studied.The resultsindicate that energy transfer can occur from carbazole to Alq 3 for the Alq 3derivative in all different solvent systems.However,solvent affects the spatial structure and electronic structure of the Alq 3 derivative that have an impact on the efficiency of energy transfer,leading to different luminescence spectra,efficiency and lifetime for different solvent systems.Among them,toluene plays a role of bridge in energy transfer,but a large amount of DMF plays negative role in energy transfer.Like DMF,DMA acting as an electron donor also playssimilar role.Besides,effects of metal ions on the luminescence properties of the Alq 3 derivative were also studied.The results show thatFe 3+and Cu 2+can cause fluorescence quenching,and the fluorescence quench effect is also affected by acid counteranions.These results indicate that the Alq 3derivative might be exploited as a multifunctional fluorescent sensing material.

关 键 词：喹啉铝 咔唑 溶剂效应 能量传递 金属离子 

分 类 号：O461.2[理学—电子物理学]