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Raman spectroscopic investigations on UV irradiated phosphate glasses with high content of silver or sodium
Optical Materials ( IF 3.9 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.optmat.2020.109816
A.I. Sidorov , Y.K. Fedorov , A.I. Sivak , N.V. Vakula

Abstract The influence of UV radiation on structural properties of phosphate glasses, with addition of high concentration of silver or sodium was studied by Raman spectroscopy. It is shown that glass synthesis conditions (reducing or oxidizing) influences considerably on glass structure reaction on UV irradiation. The role of additions (silver or sodium) is also studied. It is shown that structural changes in sodium-containing glass after UV irradiation are more manifested, than in silver-containing glasses. The destruction of subnanosized neutral silver molecular clusters under UV irradiation is also observed. The results, obtained for all types of glasses are compared and discussed. For the definition of the influence of silver and sodium atoms on chemical bonds in glass structural units, computer simulation, using density functional theory, was performed.

中文翻译:

高含量银或钠的紫外辐照磷酸盐玻璃的拉曼光谱研究

摘要 采用拉曼光谱研究了紫外辐射对添加高浓度银或钠的磷酸盐玻璃结构特性的影响。结果表明,玻璃合成条件(还原或氧化)对紫外线照射下的玻璃结构反应有很大影响。还研究了添加物(银或钠)的作用。结果表明,与含银玻璃相比,紫外线照射后含钠玻璃的结构变化更为明显。还观察到亚纳米尺寸的中性银分子簇在紫外线照射下的破坏。对所有类型的玻璃获得的结果进行了比较和讨论。对于银和钠原子对玻璃结构单元中化学键的影响的定义,计算机模拟,使用密度泛函理论,
更新日期:2020-04-01
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