Study of the luminescence properties of a novel rare earth complex Tb(DPC)22H2O |
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| Authors: | Yuguang Lv Qiuping Li Chunhui Shi Hairan Liu Fenghua Liu Lili Wu Dongmei Wu Hong Liu Jie Xie |
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| Institution: | aThe Provincial Key Laboratory of Biomaterials, College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154007, China;bClinic Medical College, Jiamusi University, Jiamusi 154002, China;cKey Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Rare earth complex Tb(DPC)22H2O was synthesized by introducing Pyridine-2,6-dicarboxylic acid(H2DPC) as the ligand and characterized by UV, fluorescent and infrared spectra as well as elemental analysis. The complex exhibited ligand-sensitized green emission, and it has the higher sensitized luminescent efficiency and longer lifetime. The effect and mechanism of the ligand (H2DPC) on the luminescence properties of terbium complex was discussed. In device ITO/PVK/Tb(DPC)22H2O/Al, Tb3+ may be excited by intramolecular energy transfer from ligand as observed by electroluminescence. The main emitting peak at 545 nm can be attributed to the transition of 5D4→7F5 of Tb3+ ion and this process results in the enhancement of green emission from electroluminescence device. |
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| Keywords: | Organic compound Thin films Electroluminescence Energy transfer |
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