【摘要】 用分析纯试剂经提纯制备的CaCO₃,SrCO₃,BaCO₃,Li₂CO₃,Al₂O₃,SiO₂,Bi₂O₃,Eu₂（C₂O₄）₃为原料,通过固态反应合成了（M,M′）_1.920O·0.1Al₂O₃·1.5SiO₂:Eu_0.025³⁺,Bi_0.04³⁺(M,M′为Ca²⁺,Sr²⁺,Ba²⁺中的任两种)系列发光材料。研究了基质的化学组成对Bi³⁺敏化Eu³⁺发光特性的影响规律。实验结果表明,激发Bi³⁺时Eu³⁺的发射谱线的分裂和⁵D₀—⁷F₂/⁵D₀—⁷F₁跃迁强度比值都受基质阳离子半径的较大影响。各组阳离子组合时Bi³⁺都能敏化Eu³⁺的发光。Eu³⁺的发射以⁵D₀—⁷F₂跃迁为主,⁵D₀—⁷F₁跃迁强度较弱。更多还原

【Abstract】 The Luminophors of alkaline earth aluminosilicates （M,M’）_1.920O_0.1Al₂O₃ 1.5SiO₂:Eu_0.025Bi_0.04（M,M’ are two of Ca, Sr, Ba） series were synthesized by solid state reactions. The effects and regularities of alkaline earths on the luminescence properties of Eu³⁺ ion were investigated by varying the kinds of M and/or M’ under excitation into Bi³⁺ ions.更多还原