Fluorescence and cofluorescence enhancement of Tb(Ⅲ) complexes with pyromellitic acid by M (M =Gd,La,Ca,and Sr ions)

稀有金属（英文版）, 2004, 23(1): 32-37.

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1.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;Key Laboratory of New Materials and Technology of China National Packaging Corporation, Zhuzhou Institute of Technology, Zhuzhou 412008, China

2.Key Laboratory of New Materials and Technology of China National Packaging Corporation, Zhuzhou Institute of Technology, Zhuzhou 412008, China

3.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

4.Key Laboratory of New Materials and Technology of China National Packaging Corporation, Zhuzhou Institute of Technology, Zhuzhou 412008, China

5.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

基金项目: 国家自然科学基金(01JJY3004) Technology of China National Packaging Corporation

Fluorescence and cofluorescence enhancement of Tb(Ⅲ) complexes with pyromellitic acid by M (M =Gd,La,Ca,and Sr ions)

Keywords： fluorescence enhancement

Fluorescence and cofluorescence properties of Tb(Ⅲ) solid complexes were studied using pyromellitic acid (PMA) as ligand and fluorescence inert ions as doping elements. The cofluorescence enhancement, a result of ligand sensitized fluorescence, was observed in Tb(Ⅲ) solid complexes doped with fluorescent inert ions La(Ⅲ), Gd(Ⅲ), Ca(Ⅲ), and Sr(Ⅲ). The effect of the type and content of doping elements on fluorescence enhancement was studied, and optimum conditions were determined. The results show that Gd (La, Ca, Sr) has clear cofluorescence effect in solid complex Tb-M-PMA system, and in present work, rare earth complex fluorescent powder that emits bright green fluorescence at ultraviolet excitation was obtained, which had potential application as fluorescent anti-counterfeit ink.

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Fluorescence and cofluorescence enhancement of Tb(Ⅲ) complexes with pyromellitic acid by M (M =Gd,La,Ca,and Sr ions)

参考文献