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对接枝在高分子链上的铽离子的发光行为进行了研究.得到了其在溶液和薄膜状态下的光致发光光谱.研究发现,聚乙烯基咔唑(PVK)对铽离子的发光有影响,氯仿溶液中对铽离子的发光起猝灭作用,而在薄膜状态下却使其发光增强了.对此现象的机理进行了初步探讨.把此种材料做成电致发光器件,可以观察到铽离子的绿色特征发光.
The luminescence behavior of terbium ions grafted onto the polymer chains was studied. Its photoluminescence spectra in solution and in thin film were obtained. It was found that polyvinylcarbazole (PVK) has an influence on the luminescence of terbium ions and quenching of the luminescence of terbium ions in chloroform solution, while the emission of luminescence in the film state is enhanced. The mechanism of this phenomenon has been discussed tentatively. The electroluminescent device made of this material, we can observe the green features of terbium ions glow.