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利用OPO激光激发光谱和三维荧光光谱研究了配合物Eu(C5H8NO3)2(C3H5N2)2C l3.3H2O固体粉末在不同激发光源下的荧光特性,测试了不同浓度配合物水溶液的荧光光谱。固体荧光结果显示该配合物具有很好的荧光性能,当激发光波长为320—400nm时,产生波长分别为400—500nm、580—620nm及690—710nm的三个荧光区;当激发光波长为700—880nm时产生峰值为450nm升频转换荧光,激发光波长为700—800nm时产生峰值分别为590nm和615nm的升频转换荧光。溶液荧光结果表明在1-0 4—10-2m ol/L浓度范围内荧光强度与溶液浓度呈正相关。对其可能的发光机制进行了探讨。
Fluorescence spectra of Eu (C5H8NO3) 2 (C3H5N2) 2Cl3.3H2O solid powders under different excitation light sources were studied by OPO laser excitation spectroscopy and three-dimensional fluorescence spectroscopy. Fluorescence spectra of aqueous solutions of different concentrations of complexes were tested. The results of solid fluorescence show that the complex has good fluorescence properties. When the excitation light wavelength is 320-400nm, three fluorescent regions with wavelength of 400-500nm, 580-620nm and 690-710nm are generated respectively. When the excitation wavelength is At 700-880 nm, a peak is generated at 450 nm up-conversion fluorescence, and up-conversion fluorescence with peaks at 590 nm and 615 nm respectively is generated at an excitation light wavelength of 700-800 nm. Fluorescence results of the solution showed that the fluorescence intensity was positively correlated with the concentration of the solution in the concentration range of 1-0 4-10-2 m ol / L. The possible mechanism of light emission is discussed.