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首页> 外文期刊>Optical Materials >The effect of UV irradiation and thermal treatments on structural properties of silver-containing photo-thermo-refractive glasses: Studies by Raman spectroscopy
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The effect of UV irradiation and thermal treatments on structural properties of silver-containing photo-thermo-refractive glasses: Studies by Raman spectroscopy

机译：紫外线和热处理对含银光热折射玻璃结构性能的影响：拉曼光谱研究

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摘要

Structural changes in silver-containing photo-thermo-refractive (PTR) silicate glasses during photo-thermo-crystallization process were studied by methods of Raman spectroscopy. Raman spectra were measured in frequency ranges 300-700 cm(-1) and 900-1300 cm(-1) after UV irradiation and subsequent thermal treatments at T = 360 degrees C and 510 degrees C. Raman spectra of silver-containing PTR glass were compared with Raman spectra of glasses without Ag, and glasses without Ag, Ce and Sb. It was shown that mentioned external treatments result in the sequence of structural changes, which may be interpreted as breaks and restoration of siloxane rings, appearance of new rings, appearance and disappearance of non-bridging oxygen centers. These processes can influence on the features of photo-thermo-crystallization processes in PTR glasses.
机译：利用拉曼光谱法研究了含银光热折变（PTR）硅酸盐玻璃在光热结晶过程中的结构变化。在紫外线辐照和随后在T = 360摄氏度和510摄氏度进行热处理之后，在300-700 cm（-1）和900-1300 cm（-1）的频率范围内测量拉曼光谱。含银PTR玻璃的拉曼光谱将其与没有银，没有银，铈和锑的玻璃的拉曼光谱进行比较。结果表明，所提到的外部处理导致结构变化的顺序，这可以解释为硅氧烷环的断裂和还原，新环的出现，非桥氧中心的出现和消失。这些过程可能会影响PTR玻璃中的光热结晶过程的特征。

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