Abstract Li2Na1-xBP2O8:xPr3+ (x = 0–0.04 mol) solid solutions were synthesized by a high temperature sintering process. The crystalline phase, microstructure, chemical state of constituent element, and luminescence were performed. Excited by the short-wave ultraviolet light originating from 4f 2 → 4f15d1 of Pr3+, an orange emitting behavior (3P0 → 3F3 of Pr3+, 673 nm) was proposed. The relationship between the doping Pr3+ concentration and the orange emitting behavior was analyzed. Concentration quenching occurs due to electric dipole – dipole interaction. All work revealed that the title solid solution is a selected material for solid state illumination and lighting.

中文翻译：

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Li2Na1-BP2O8:xPr固溶体在短波紫外线照射下的优化橙色发光行为

摘要 Li2Na1-xBP2O8:xPr3+ (x = 0–0.04 mol) 固溶体是通过高温烧结工艺合成的。进行了晶相、微观结构、构成元素的化学状态和发光。受到来自Pr3+的4f 2 → 4f15d1的短波紫外光的激发，提出了橙色发光行为（Pr3+的3P0 → 3F3，673 nm）。分析了掺杂Pr3+浓度与橙色发光行为之间的关系。由于电偶极-偶极相互作用而发生浓度猝灭。所有工作都表明，标题固溶体是固态照明和照明的精选材料。