The main objective of this work is to study the broadening of the 1.0 μm emission band by multi-rare-earth (RE) ions doping. Therefore, Near-infrared (NIR) emission in zinc-tellurite (TZ) glasses has been investigated. A series of TZ glasses with the nominal molar composition of 70%TeO2–30%ZnO doped with Pr³⁺, Nd³⁺, Er³⁺, co-doped with Pr³⁺/Nd³⁺ ions, and tri-doped with Pr³⁺/Nd³⁺/Er³⁺ ions were successfully prepared. The study has focused on the optical absorption as well as the photoluminescence (PL) measurements of the different used samples. The PL investigation, under 488 nm excitation line, has demonstrated that the spectral broadening of the 1.0 μm emission band in the range of 900–1150 nm has been significantly improved. This improvement was mainly caused by the presence of the overlapping emission bands associated to Er³⁺, Nd³⁺, and Pr³⁺ and the energy transfer between these ions in the glass host.

这项工作的主要目的是研究多稀土 (RE) 离子掺杂对 1.0 μm 发射带的加宽。因此，已经研究了锌-碲酸盐 (TZ) 玻璃中的近红外 (NIR) 发射。标称摩尔组成为 70%TeO2–30%ZnO 的一系列 TZ 玻璃，掺杂 Pr ³⁺、Nd ³⁺、Er ³⁺，共掺杂 Pr ³⁺ /Nd ³⁺离子，三掺杂Pr ³⁺ /Nd ³⁺ /Er ³⁺离子制备成功。该研究侧重于不同使用样品的光吸收和光致发光 (PL) 测量。在 488 nm 激发线下的 PL 研究表明，1.0 μm 发射带在 900-1150 nm 范围内的光谱展宽得到了显着改善。这种改进主要是由于存在与 Er ³⁺、Nd ³⁺和 Pr ³⁺相关的重叠发射带以及玻璃基质中这些离子之间的能量转移。