We present and discuss the structural and spectroscopic properties of micro-crystalline Yb³⁺-doped La₂Mo₂O₉ molybdates (0–25 mol% of Yb³⁺ ions) synthesized by the high-temperature solid-state reaction in which Yb³⁺ optical rare earth ion play the role of a structural probe. The main objective is to apply these materials to transparent optical ceramics. The XRD and SEM analysis reveal a strong structural dependence of the crystal structure on Yb³⁺ ion concentration. The high-resolution of the ²F_7/2 ↔ ²F_5/2 0-phonon line of Yb³⁺ ions in absorption and emission spectroscopy at low temperature allows us to evidence three types of polyhedral around Yb³⁺ ions. Clear differences for cubic Yb³⁺-doped both La₂Mo₂O₉ and mixed La₂MoWO₉ are observed as a result of the introduction of tungsten ions leading to greater disorder in the lattice. First translucent cubic ceramics have been successfully fabricated and the comparison turns out in favor of Yb³⁺-doped mixed La₂MoWO₉.

我们提出并讨论了通过高温固态反应合成的微晶掺Yb ^3+的La ₂ Mo ₂ O ₉钼酸盐（0-25 mol％Yb ³⁺离子）的结构和光谱性质。³⁺光学稀土离子起结构探针的作用。主要目的是将这些材料应用于透明光学陶瓷。XRD和SEM分析表明，晶体结构对Yb ³⁺离子浓度具有很强的结构依赖性。所述分辨率高的的² ˚F _7/2  ↔  ² ˚F _5/2 Yb中0 -声子线³⁺离子在吸收和发射光谱中的低温状态使我们能够证明Yb ³⁺离子周围的三种多面体类型。观察到由于掺入钨离子导致晶格中更大的无序的结果，立方Yb ³⁺掺杂的La ₂ Mo ₂ O ₉和混合的La ₂ MoWO ₉都存在明显的差异。第一个半透明的立方陶瓷已经成功地制造出来，并且进行了比较，结果表明，掺Yb ^3+的混合La ₂ MoWO ₉更好。