Dy3+ and Eu3+-doped oxyfluoride glass and glass nanocomposites are subjected to low and high dose of γ-irradiation, i.e., 100 Gy and 1 kGy, respectively. The photoluminescence spectra show changes in electric to magnetic dipole ratios signifying variations in local structural environment. Glass-ceramics depict the tendency of crystallization or the ordering of structure with increasing γ-irradiation dose. The results are further supported with X-ray diffraction and scanning electron microscopy (SEM) measurements. The formation of nanometer size fluoride particles in the pristine glass and glass-ceramics after γ-irradiation has been observed from SEM studies. Fourier transform infrared (FTIR) study reveals the restructuring of aluminosilicate network under γ-irradiation.

Photoluminescence and Structural Characterization of RE-Doped Sodium Aluminosilicate Oxyfluoride Glass and Nanocrystalline Glass-Ceramics as a Function of γ-Irradiation Dose

Falconier M.;
2019

Abstract

Dy3+ and Eu3+-doped oxyfluoride glass and glass nanocomposites are subjected to low and high dose of γ-irradiation, i.e., 100 Gy and 1 kGy, respectively. The photoluminescence spectra show changes in electric to magnetic dipole ratios signifying variations in local structural environment. Glass-ceramics depict the tendency of crystallization or the ordering of structure with increasing γ-irradiation dose. The results are further supported with X-ray diffraction and scanning electron microscopy (SEM) measurements. The formation of nanometer size fluoride particles in the pristine glass and glass-ceramics after γ-irradiation has been observed from SEM studies. Fourier transform infrared (FTIR) study reveals the restructuring of aluminosilicate network under γ-irradiation.
nanocrystalline glass ceramics; oxyfluoride glass; rare-earth doping; γ-irradiation
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/53603
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