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首页> 外文会议>International Conference on Physics and Chemistry of Materials in Novel Engineering Applications >A new host with customized intense lasing action: Ag nanoparticles and Ho~(3+) interplay
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A new host with customized intense lasing action: Ag nanoparticles and Ho~(3+) interplay

机译：具有定制激光激光动作的新主机：AG纳米粒子和HO〜（3+）相互作用

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The lasing potency of the doped rare earth ions (REIs) in the metallic nanoparticles (MNPs) incorporated various host materials (amorphous, crystalline or mixed phases) was shown to be governed mainly by their surrounding structures. In our opinion, by interplaying the REIs (operate as activator) and MNPs (act as sensitiser) contents in the host matrix an enhanced lasing action may be achieved. To validate this outlook, two series of holmium ions (Ho~(3+)) activated zinc-sulfo-boro-phosphate glass-ceramic (GC) with different concentration of silver nanoparticles (AgNPs) were synthesised following the celebrated melt-quenching strategy under the controlled user-defined heating and cooling conditions. In the first GC series the AgNPs were created from the AgCl via thermal annealing assisted redox reaction and in the second series pure AgNPs were directly included. These two series revealed different localised surface plasmon resonance (LSPR) effect due to dissimilar mean size of the NPs. As-quenched samples were thoroughly characterized to determine the influence of the activator and sensitizer on their structural and optical attributes. The XRD results of these samples revealed their GC nature and the TEM images showed the existence of the AgNPs within the host network where the LSPR bands of the AgNPs reaffirmed such disclosure. The GC containing 0.8 mol% of AgNPs (mean diameter of 20 nm) exhibited the optimum photoluminescence (PL) intensity enhancement and most intense LSPR band. The achieved AgNPs size dependent improvement in the green and red PL intensity of the Ho~(3+) clearly validated the intrinsic structural-optical correlation in the studied GCs which was attributed to the synergy of Ho~(3+) and AgNPs. For the first time we demonstrated that by carefully manipulating the REIs and MNPs contents the lasing potential of these new types of GC hosts can be enhanced. The present knowledge may be beneficial for the development of the efficient photonic devices based on Ho~(3+)-doped boro-phosphate GCs sensitized by morphology tuned AgNPs.
机译：金属纳米颗粒（MNP）中掺杂稀土离子（REIS）的激光效力掺入各种主体材料（无定形，结晶或混合阶段），主要由周围结构治理。在我们看来，通过将REIS（作为激活器）和MNP（作为敏感剂）内容相互播放，可以实现增强的激光动作。为了验证这一前景，在庆祝的熔体淬火策略之后，合成了两种钬离子（Ho〜（3+））活性锌 - 磺硼 - 磷酸玻璃 - 陶瓷（GC），其具有不同浓度的银纳米粒子（AgNP）在受控用户定义的加热和冷却条件下。在第一个GC系列中，通过热退火辅助氧化还原反应和在第二系列中直接包括在AgCl中产生AgNP。这两个系列揭示了由于NPS异常平均尺寸而导致的不同局部表面等离子体共振（LSPR）效应。彻底淬火样品进行了彻底的特征，以确定活化剂和敏化剂对它们结构和光学属性的影响。这些样本的XRD结果揭示了他们的GC性质，TEM图像显示了主机网络内的AGNP的存在，其中AGNP的LSPR频带重申了这种公开内容。含有0.8摩尔％的agnps（平均直径为20nm）的GC表现出最佳的光致发光（PL）强度增强和最强烈的LSPR频带。在HO〜（3+）的绿色和红色PL强度上实现的AGNPS尺寸依赖性改善明显验证了所研究的GCS中的内在结构 - 光学相关性，其归因于HO〜（3+）和AGNP的协同作用。我们首次证明，通过仔细操纵REIS和MNP内容，可以提高这些新型GC主机的激光潜力。本知识可能有利于基于HO〜（3 +）掺杂的硼磷酸酯GCS的高效光子器件的开发有益于通过形态学调整AGNPS感染的高效光子磷酸酯GC。

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