Milanova Margarita, Yordanova Aneliya, Aleksandrov Lyubomir, Iordanova Reni, Petrova Petia
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, G. Bonchev Str., Bld. 11, 1113 Sofia, Bulgaria.
Institute of Optical Materials and Technologies "Acad. Jordan Malinowski", Bulgarian Academy of Sciences, Blvd. Akad. G. Bonchev Str., Bld. 109, 1113 Sofia, Bulgaria.
Molecules. 2025 May 20;30(10):2229. doi: 10.3390/molecules30102229.
Dy single-doped and Dy/Eu co-doped ZnO:BO:WO:NbO glass was successfully synthesized using the melt quenching method. The amorphous character of the prepared samples was confirmed by X-ray diffraction (XRD). The glass transition and crystallization temperatures were examined by differential scanning calorimetry (DSC). Raman spectroscopy was applied to investigate the glass microstructure. Physical properties like the density, molar volume, oxygen molar volume and oxygen packing density of the glass were also determined. The photoluminescence excitation (PLE) and emission (PL) spectra of the resultant glass types were measured. The obtained Dy single-doped glass was characterized by strong luminescence at 482 and 574 nm, corresponding to the F → H (blue) and F → H (yellow) transitions, respectively, and weak luminescence at 663 nm and 753 nm due to the F → H (red) and F → H + F (red) transitions. The luminescence results indicate that energy transfer from the Dy to Eu ions occurs in the proposed glass system. The emitted light from the Dy single-doped glass was found to be yellow-orange. The Dy/Eu co-doped samples emitted darker orange light. The obtained results show that the investigated types of glass have the potential to be used as orange light-emitting materials.
采用熔融淬火法成功合成了Dy单掺杂和Dy/Eu共掺杂的ZnO:BO:WO:NbO玻璃。通过X射线衍射（XRD）证实了所制备样品的非晶特性。用差示扫描量热法（DSC）研究了玻璃化转变温度和结晶温度。应用拉曼光谱研究玻璃的微观结构。还测定了玻璃的密度、摩尔体积、氧摩尔体积和氧堆积密度等物理性质。测量了所得玻璃类型的光致发光激发（PLE）和发射（PL）光谱。所获得的Dy单掺杂玻璃的特征在于在482和574nm处有强发光，分别对应于F→H（蓝色）和F→H（黄色）跃迁，以及在663nm和753nm处由于F→H（红色）和F→H + F（红色）跃迁而产生的弱发光。发光结果表明在所提出的玻璃体系中发生了从Dy到Eu离子的能量转移。发现Dy单掺杂玻璃发出的光是黄橙色。Dy/Eu共掺杂样品发出较暗的橙色光。所得结果表明，所研究的玻璃类型有潜力用作橙色发光材料。
