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Upconversion luminescence of Sm2+ ions

机译:Sm 2 + 离子的上转换发光

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Herein, we report the phenomenon of upconversion luminescence from Sm2+ ions, which demonstrates that changeable valence lanthanides can serve as ions for optical frequency transformation. Upon excitation with a 980 nm diode laser, the doped Sm2+ ions in the hybrid material BaFCl0.5Br0.5:1%Sm2+–CaF2:1%Yb3+ emit red upconversion fluorescence peaks at 631 nm, 644 nm, 665 nm, 689 nm, 704 nm, and 729 nm from the 5D0,17F0,1,2 transitions. By transient dynamic analysis, we attributed the excitation of Sm2+ ions to the cooperation energy transfer process, in which two excited Yb3+ ions simultaneously transfer their energy to one Sm2+ ion.
机译:在此,我们报道了Sm 2 + 离子的上转换发光现象,这表明可变价价的镧系元素可以用作光频率转换的离子。在用980 nm二极管激光器激发后,杂化材料BaFCl 0.5 Br中掺杂的Sm 2 + 离子 0.5 :1%Sm 2 + –CaF 2 :1%Yb 3 + 5 D 0,1 7 F 0,1,2 过渡。通过瞬态动力学分析,我们将Sm 2 + 离子的激发归因于协同能量转移过程,其中两个激发的Yb 3 + 离子同时将其能量传递给一个Sm 2 + 离子。

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