Double Gain of Efficient UV-C Phosphor and Fast Scintillator Based on Pr3+-doped KY3F10 Nano-Glass Composites,Advanced Optical Materials

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Double Gain of Efficient UV-C Phosphor and Fast Scintillator Based on Pr3+-doped KY3F10 Nano-Glass Composites
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2023-11-10 , DOI: 10.1002/adom.202302086
Sikai Wang ₁ , Chunshuai Hua ₁ , Lu Wang ₁ , Ci Wang ₁ , Lu Liu ₁ , Jing Ren _{1,

2} , Jianzhong Zhang _{1,

2}

Affiliation

Glassy phosphors offer a promising opportunity to overcome the limits of polycrystalline counterparts, thanks to their merits including excellent optical transparency, abandonment of organic binders, and capability of drawing fibers, etc. However, research and development of glassy UV-C phosphors and fast scintillators have seriously lagged behind crystals. Here, a new type of efficient UV-C phosphors and fast scintillators (double gain) is developed from Pr³⁺-doped transparent nano-glass composites (nano-GCs) containing KY₃F₁₀ nanocrystals. Such a material combines favorably the advantages of both crystal and glass, exhibiting intense interconfigurational 5d-4f emissions of Pr³⁺ upon deep-UV, high energy electron-beam and X-ray excitations. The emission profile ideally overlaps with the germicidal effectiveness curve. The Pr³⁺-doped nano-GCs are endowed with a radiative decay time shorter than that of extensively studied Ce³⁺-doped glasses and nano-GCs. They exhibit intense X-ray excited radioluminescence that is comparable to the standard Bi₄Ge₃O₁₂ (BGO) crystal and significantly stronger than Pr³⁺-doped ZBLAN fluoride glass known for the high luminescence efficiency. An X-ray imaging system with a good spatial resolution using the Pr³⁺-doped nano-GCs is also demonstrated.

中文翻译：

基于Pr3+掺杂KY3F10纳米玻璃复合材料的高效UV-C荧光粉和快速闪烁体的双倍增益

玻璃状荧光粉因其优异的光学透明度、放弃有机粘合剂以及拉制纤维的能力等优点，为克服多晶荧光粉的局限性提供了一个有前途的机会。然而，玻璃状UV-C荧光粉和快速闪烁体的研究和开发严重落后于水晶。在这里，一种新型高效UV-C荧光粉和快速闪烁体（双增益）是由含有KY ₃ F _{10纳米晶体的Pr}³⁺掺杂透明纳米玻璃复合材料（纳米GC）开发而成。这种材料很好地结合了晶体和玻璃的优点，在深紫外、高能电子束和X射线激发下表现出强烈的Pr ^3+互构型5d -4 f发射。理想情况下，排放曲线与杀菌效果曲线重叠。Pr ³⁺掺杂的纳米GC具有比广泛研究的Ce ³⁺掺杂的玻璃和纳米GC更短的辐射衰减时间。_{它们表现出强烈的 X 射线激发辐射发光，与标准 Bi 4} Ge ₃ O ₁₂ (BGO) 晶体相当，并且明显强于以高发光效率闻名的Pr ^{3+掺杂 ZBLAN 氟化物玻璃。}还展示了使用 Pr ³⁺掺杂纳米GC的具有良好空间分辨率的X 射线成像系统。

更新日期：2023-11-10

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