Abstract The development of the metallic nanoparticles-sensitised and lanthanides-doped multi-functional luminescent glass-ceramics (GCs) for advanced applications remains challenging. In this perception, the role of varying silver nanoparticle (Ag NP) concentration on the structures, microstructures and optical properties of some new class of zinc-sulfo-boro-phosphate GCs activated with holmium ions (Ho3+) was analysed using different mechanisms. These GCs were prepared by the standard melt-quenching and thoroughly characterised using various analytic means. The XRD patterns of the as-quenched samples confirmed their GC nature. The Judd–Ofelt (J–O) intensity parameters and radiative properties plus the CIE colour coordinates for these GCs were evaluated using the measured photoluminescence (PL) spectral data. The absorption spectra of the GCs revealed 13 peaks associated to the Ho3+ transitions and the absorption edge data were used to calculate the optical band gap and Urbach energy. The PL spectra of the titled GCs revealed an intense green and red emission peak distinctive of the electronic transitions in Ho3+. Despite the strong mediation of the Ag NPs LSPR on the PL emission of Ho3+, the structural alterations in the GCs network played a dominant role towards the PL peak intensity quenching. The density, Raman, FTIR and impedance spectral analyses exhibited the formation of more bridging oxygen and significant reduction of the nonbridging oxygen in the GC matrix due to the addition of Ag NPs, leading to the Ho3+ clustering. An interrelationship between the structural and optical attributes in these GCs was ascertained for the first time. The proposed GC compositions are established to be beneficial for the advancement of the novel luminescent materials for various photonic and optoelectronic applications.

中文翻译：

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Ho3+ 掺杂硼磷酸盐玻璃陶瓷的光谱特征：Ag 纳米颗粒敏化的作用

摘要 用于高级应用的金属纳米粒子敏化和镧系元素掺杂的多功能发光玻璃陶瓷 (GC) 的开发仍然具有挑战性。在这种看法中，使用不同的机制分析了不同的银纳米颗粒 (Ag NP) 浓度对一些用钬离子 (Ho3+) 活化的新型锌磺硼磷酸盐 GC 的结构、微观结构和光学性质的作用。这些 GC 是通过标准熔体淬火制备的，并使用各种分析方法进行彻底表征。淬火样品的 XRD 谱证实了它们的 GC 性质。使用测量的光致发光 (PL) 光谱数据评估这些 GC 的 Judd-Ofelt (J-O) 强度参数和辐射特性以及 CIE 颜色坐标。GC 的吸收光谱揭示了与 Ho3+ 跃迁相关的 13 个峰，吸收边数据用于计算光学带隙和 Urbach 能量。标题为 GC 的 PL 光谱显示出强烈的绿色和红色发射峰，这与 Ho3+ 中的电子跃迁不同。尽管 Ag NPs LSPR 对 Ho3+ 的 PL 发射有很强的中介作用，但 GCs 网络中的结构改变对 PL 峰强度猝灭起主导作用。密度、拉曼、FTIR 和阻抗光谱分析表明，由于添加了 Ag NP，GC 基质中形成了更多的桥接氧和非桥接氧的显着减少，导致了 Ho3+ 聚类。首次确定了这些 GC 中结构和光学属性之间的相互关系。