光谱学与光谱分析, 2018, 38 (4): 1290, 网络出版: 2018-06-12  

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

Luminescence Properties of Carbazole-Substituted Alq3 Derivative: a Potential Multifunctional Fluorescent Sensing Material
作者单位
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
摘要
研究了一种含咔唑取代基喹啉铝(Alq3)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。
Abstract
This work presents a study on the luminescence properties of a carbazole-substituted aluminum quinolone (Alq3) derivative. Firstly, the effect of solvents on the luminescence properties of the Alq3 derivative was studied. The results indicate that energy transfer can occur from carbazole to Alq3 for the Alq3 derivative in all different solvent systems. However, solvent affects the spatial structure and electronic structure of the Alq3 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 plays similar role. Besides, effects of metal ions on the luminescence properties of the Alq3 derivative were also studied. The results show that Fe3+ and Cu2+ can cause fluorescence quenching, and the fluorescence quench effect is also affected by acid counteranions. These results indicate that the Alq3 derivative might be exploited as a multifunctional fluorescent sensing material.

张春燕, 罗建新, 欧丽娟, 刘勇, 胡波年, 喻桂鹏, 潘春跃. 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[J]. 光谱学与光谱分析, 2018, 38(4): 1290. ZHANG Chun-yan, LUO Jian-xin, OU Li-juan, LIU Yong, HU Bo-nian, YU Gui-peng, PAN Chun-yue. Luminescence Properties of Carbazole-Substituted Alq3 Derivative: a Potential Multifunctional Fluorescent Sensing Material[J]. Spectroscopy and Spectral Analysis, 2018, 38(4): 1290.

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