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Growth of metallic Ag nanoparticles in fluoroborate glasses doped with rare earth ions and their optical characterization

机译:掺杂稀土离子的氟硼酸盐玻璃中金属Ag纳米粒子的生长及其光学特性

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Fluoroborate glasses have been prepared containing silver nanoparticles (NP) and rare-earth (RE) ions. Optical techniques were used for analysis of the surface plasmon (SP) band formation and to determine the influence of the NP on the RE ions luminescence. Electron microscopy was applied to measure the particles concentration and their size distributions. The techniques used allowed to identify the presence of Ag particles with diameters in the range of 5-200 nm. The absorption band of SP is centered at 425 nm for samples doped with Eu~(3+) and centered at 416 nm for samples with Pr~(3+). The ions luminescence shows enhancement or quenching for metallic particles of different sizes.
机译:已经制备了含银纳米颗粒(NP)和稀土(RE)离子的氟硼酸盐玻璃。光学技术用于分析表面等离激元(SP)带的形成,并确定NP对RE离子发光的影响。电子显微镜用于测量颗粒浓度及其尺寸分布。所使用的技术允许识别直径在5-200 nm范围内的Ag颗粒的存在。对于掺有Eu〜(3+)的样品,SP的吸收带以425 nm为中心,而掺Pr〜(3+)的样品的SP的吸收带以416 nm为中心。离子发光显示出不同大小的金属颗粒的增强或淬灭。

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