Influence of Ce3+ ion on optical properties and radiation resistance in Ce3+/Tm3+-co-doped alumino-silicate glasses

Yan Jiao (1, 2) , Chongyun Shao (1) , Mengting Guo (1, 2) , Malgorzata Guzik (3) , Yang Zhang (4) , Chunlei Yu (1) , Georges Boulon (5) , Lili Hu (1)

1 SIOM - Shanghai Institute of Optics and Fine Mechanics
2 UCAS - University of Chinese Academy of Sciences [Beijing]
3 UWr - University of Wrocław [Poland]
4 Shanghai Institute of Satellite Engineering
5 iLM - LUMINESCENCE - iLM - Luminescence

Several Ce3+/Tm3+-co-doped alumino-silicate glasses with various Ce3+/Tm3+ ratios were prepared by a sol-gel method combined with vacuum sintering. To determine their radiation resistance, the glasses were exposed to 1 and 100 kGy γ-ray. The effect of the Ce3+/Tm3+ ratio on the absorption, emission and fluorescence lifetime of the glasses under investigation, was examined before and after irradiation. The Ce4+ and Ce3+ cations were detected and the nature of Si-E′ and AlOHC color centers caused by irradiation was identified by radiation-induced absorption (RIA) and electron paramagnetic resonance (EPR) spectroscopy. Co-doping with Ce3+ ions can significantly improve the radiation resistance of the glass, although it can deteriorate the spectral properties of Tm3+ ions. Additionally, the related influence mechanisms are discussed. The obtained results indicate that Ce3+/Tm3+-co-doped alumino-silicate glasses with optimized Ce3+ ion concentrations, a Ce3+/Tm3+ molar ratio less than 0.3, can be used as an active medium for radiation-resistant materials in harsh radiation environments.

Mots clés: Alumino-silicate glasses; Ce3+/Tm3+ ions; Sol-gel method; Optical materials; Radiation resistance

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Yan Jiao, Chongyun Shao, Mengting Guo, Malgorzata Guzik, Yang Zhang, et al.. Influence of Ce3+ ion on optical properties and radiation resistance in Ce3+/Tm3+-co-doped alumino-silicate glasses. Optical Materials: X, 2022, 13, pp.100113. ⟨10.1016/j.omx.2021.100113⟩. ⟨hal-03715235⟩