首次用高温固相反应合成了Li_(0.5)MAl_(0.5)SiO_4:Eu,Bi(M=Mg,Ca,Sr,Ba)发光体,研究了基质中不同碱土金属离子对Eu~(3+)和Bi~(3+)的发光特性以及Bi~(3+)敏化Eu~(3+)发光性能和能量传递特点,得到了良好的基质组成和一些规律性结果。用395nm 紫外线激发,M=Mg 时的发光强度比Y(V,P)O_4:Eu强约60%。Bi~(3+)发光的Stokes 位移与M(Ⅱ)的离子半径呈线性关系。
The luminophors of silicates Li_(0.5)MAl_(0.5)SiO_4:Eu,Bi(M=Mg,Ca,Sr,Ba)weresynthesized and luminescence properties of Bi~(3+)and Eu~(3+)ions were studied.The effects andregularities of M(Ⅱ)ions on the luminescence of Eu~(3+)and Bi~(3+)ions were also inve
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