Abstract

Studies of the structure, IR absorption spectra, luminescence spectra, and excitation of luminescence of Ce³⁺ and Tb³⁺ ions in crystals of solid solutions of Lu_{1 – x – y}Ce_xTb_yBO₃ at 0 ≤ x ≤ 0.01 and 0.07 ≤ y ≤ 0.16 have been performed. It has been shown that the solid solution Lu_1 – yTb_yBO₃ synthesized at T = 970°C has the structure of calcite at 0 ≤ y ≤ 0.07, at y ≥ 0.16—the structure of vaterite, and in the range 0.07 < y < 0.16 is two-phase. It has been found that additional doping of 0.5–1 at % Ce³⁺ of two-phase Lu_1 ‒ yTb_yBO₃ samples, in which the proportion of the vaterite phase does not exceed ∼20%, leads to a significant reduction of the vaterite phase. It has been shown that Ce³⁺ ions can be used as structurally sensitive and optically active marks in the analysis of the structural state of rare earth element orthoborates.

中文翻译：

---

铈对LuBo 3（Ce，Tb）光谱和结构特征的影响

摘要

的结构中，IR吸收光谱，发光光谱和激发的Ce的发光的研究³⁺和Tb ³⁺在路的固溶体的结晶离子_{1 -  X  -  ý}铈_X铽_ý BO ₃在0≤ X ≤0.01和0.07≤ ÿ  ≤0.16已经执行。已经显示的是，固溶体路_{1 -  ý}铽_ý BO ₃在合成Ť = 970℃具有方解石的在0≤结构ÿ ≤0.07，在ÿ ≥球霰石的0.16的结构，并且在范围0.07 < y  <0.16是两相的。已经发现，在两相Lu _{1 y y} Tb _y BO ₃样品中额外掺杂0.5–1 at％Ce ^3+时，球ate石相的比例不超过〜20％，从而导致显着降低球ate石阶段。已经显示，在分析稀土元素原硼酸盐的结构状态时，Ce ³⁺离子可用作结构敏感和光学活性标记。