掺杂金属离子对(Eu,Tb)稀土配合物发光性质的影响

王 鹏; 魏长平; 任晓明

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掺杂金属离子对(Eu,Tb)稀土配合物发光性质的影响

论文 | 更新时间：2020-08-12

- 掺杂金属离子对(Eu,Tb)稀土配合物发光性质的影响
- Influences of Co-doping Metal Ions on Luminescent Properties of (Eu,Tb) Rare Earth Complexes
- 发光学报 2009年30卷第1期页码：97-100
- 作者机构：
  
  1. 长春理工大学材料科学与工程学院,吉林长春,130022
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王鹏, 魏长平, 任晓明. 掺杂金属离子对(Eu,Tb)稀土配合物发光性质的影响[J]. 发光学报, 2009,30(1):97-100.

WANG Peng, WEI Chang-ping, REN Xiao-ming. Influences of Co-doping Metal Ions on Luminescent Properties of (Eu,Tb) Rare Earth Complexes[J]. Chinese Journal of Luminescence, 2009,30(1):97-100.
王鹏, 魏长平, 任晓明. 掺杂金属离子对(Eu,Tb)稀土配合物发光性质的影响[J]. 发光学报, 2009,30(1):97-100. DOI：

WANG Peng, WEI Chang-ping, REN Xiao-ming. Influences of Co-doping Metal Ions on Luminescent Properties of (Eu,Tb) Rare Earth Complexes[J]. Chinese Journal of Luminescence, 2009,30(1):97-100. DOI：

摘要

合成了以柠檬酸为第一配体、1,10-菲咯啉为第二配体的单核稀土(Eu、Tb)配合物和Tb/Y、Eu/Y按不同比例混合的掺杂稀土配合物。采用红外光谱、紫外光谱、激发和发射光谱等对合成的配合物结构和荧光性能进行了表征。红外光谱表明稀土离子与第一、第二配体进行了配位,配合物的紫外吸收主要是配体的吸收,保持了π→π,*, 电子跃迁的特征。激发和发射光谱表明,不发光稀土离子Y,3+,的掺入能显著增强发光稀土离子的光发射强度。

Abstract

In my paper, the rare earth (Eu, Tb) complexes were synthesized with citric acid as the first ligand and 1,10-phenanthroline (phen) as the secondary ligand, ternary rare earth complexes with a series of different ratios of Eu/Y and Tb/Y were synthesized. The complexes synthesized were characterized by IR spectra, UV spectra and emission-excitation spectra. IR spectra and elemental analysis show that composition and structure of the complexes synthesized is the same as the data in accordance with a chemical formula, the rare earth ions coordinated with the ligands, and the complexes is the target product. From the IR spectrum it can be seen, the C—O bond(1 729 cm^-1) of citric acid symmetric stretching vibration, C—O bond (1 217 cm^-1) symmetric stretching and O—H hydrogenous bond formation of hydroxyl plane bending vibration (945 cm^-1) disappeared after the formation of complexes. The absorption of the ligand (phen) resulted in the complexe’s absorption which holded the character of π→π^* transition with the formation of the ligand (phen) having little effect on the transition. Y³⁺ does not produce fluorescence itself, but the fluorescence intensity of the europium(Ⅲ) complexes increased with yttrium(Ⅲ) doped. The energy of ligand triplet state was transfered to yttrium(Ⅲ) difficultly because of the high excitation energy and f⁰ structure of yttrium(Ⅲ), so that europium(Ⅲ) can get more energy, and its fluorescence intensity increased, which is so-called the co-luminescence.

关键词

稀土配合物掺杂柠檬酸苯甲酸110-菲咯啉

Keywords

rare earth complexesdopingcitric acidbenzoic acid110-phenanthroline

references

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