Insights into the photodarkening mechanism of Tb3+/Al3+ co-doped silica glasses

Juping Ma,Yan Jiao,Chongyun Shao,Yan Sun,Fei Yu,Lili Hu

Journal of Non-Crystalline Solids（2022）

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摘要

•The photodarkening mechanism of Tb3+/Al3+ co-doped silica glasses was revealed.•Influence of Al3+ on optical properties of Tb3+ in silica glasses was studied.•X-ray radiation induced defects in Tb3+/Al3+ co-doped silica glasses were studied.•Valence changes behavior of Tb3+ ions and defects in silica glasses were revealed.

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关键词

Photodarkening mechanism,Tb3+/Al3+ co-doped silica glass,Electron paramagnetic resonance (EPR)

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