Investigations of the thermal, structural, and Near-IR emission properties of Ag containing fluorophosphate glasses and their crystallization process
Investigations of the thermal, structural, and Near-IR emission properties of Ag containing fluorophosphate glasses and their crystallization process
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DOI：
10.1016/j.optmat.2022.112610
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发表时间：
2022-09-01
影响因子：
3.9
通讯作者：
Elhouichet, Habib
中科院分区：
文献类型：
--
作者：
Ennouri, Marwa;Petit, Laeticia;Elhouichet, Habib
在这项工作中，Ag 2 O的热，结构和近红外发光的Er 3+掺杂氟磷酸钙玻璃的影响进行了研究。玻璃中银氧化物的量显著影响其热稳定性和结晶过程。玻璃的热稳定性的增加可能归因于使用FTIR和拉曼光谱证明的偏磷酸盐网络的解聚。Ag纳米颗粒在玻璃网络内的沉淀，由热处理诱导，已被确认的外观的清晰可见的宽吸收带集中在约450 nm的玻璃热处理后。这样的物种诱导在Er 3 + IR发射的显着增强。透明玻璃-陶瓷还通过热处理玻璃进行加工。XRD分析表明，在玻璃中添加Ag 2 O以牺牲CaF 2晶体为代价促进了新晶相的沉淀。在玻璃网络中的这种纳米结构的存在下诱导Er离子位点的分布的一些修改。
In this work, the impact of Ag2O on the thermal, structural, and Near-IR luminescence of Er3+ doped calcium-fluorophosphate glasses is investigated. The amount of silver oxide in the glass significantly impacts its thermal stability and crystallization process. The increase in the thermal stability of the glasses might be attributed to the depolymerization of the metaphosphate network evidenced using FTIR and Raman spectroscopies. The precipitation of Ag nanoparticles within the glass network, induced by a thermal treatment, has been confirmed by the appearance of a clear visible broad absorption band centered at about 450 nm in the glasses after heat treatment. Such species induce a significant enhancement in the Er3+ IR emission. Transparent glass-ceramics have also been processed by thermally treating the glasses. The XRD analyses have revealed that the addition of Ag2O in the glass promotes the precipitation of new crystalline phases at the expense of CaF2 crystals. The presence of such nanostructures in the glass network induces some modifications in the distribution of Er ion sites.