论文部分内容阅读
合成了以2-羟基-4-甲氧基二苯甲酮(uv-9)为配体的3种稀土配合物Eu(uv-9)3·2H_2O、Sm(uv-9)_3·2H_2O、Dy(uv-9)3·2H_2O,并用元素分析、红外光谱和荧光光谱对其进行了表征。荧光测试结果表明,2-羟基-4-甲氧基二苯甲酮是Eu~(3+)和Sm~(3+)的优良配体,能很好地敏化这个两个离子发光,但是对Dy~(3+)无敏化作用。铕配合物和钐配合物发出600 nm~670 nm的红光,特别是钐配合物发出强的653 nm附近红光,与植物的光合作用吸收带非常匹配。而且发光稳定性好,因此它们可作为理想的光转换材料用于光功能农膜中。
Three rare earth complexes Eu (uv-9) 3 · 2H 2 O, Sm (uv-9) 3 · 2H 2 O with 2-hydroxy-4-methoxybenzophenone (uv- Dy (uv-9) 3 · 2H 2 O was synthesized and characterized by elemental analysis, infrared spectroscopy and fluorescence spectroscopy. Fluorescence test results show that 2-hydroxy-4-methoxybenzophenone is an excellent ligand of Eu 3+ and Sm 3+, which can sensitize the two ions well, but No sensitization to Dy ~ (3 +). The europium complex and the samarium complex emit red light at 600 nm to 670 nm. In particular, the samarium complex emits a strong red light near 653 nm, which matches well with the photosynthetic absorption bands of plants. And they have good luminescence stability, so they can be used as ideal photo-conversion materials in light-functional agricultural films.