Abstract
Abstract Multicomponent borosilicate glasses containing xSm2O3 oxide (x = 0.5, 1.0, 2.0, 3.0 and 5 wt%) are synthesized by melting at high temperature (∼1500 °C) in air and exposed to β-irradiation (2.5 MeV (14 μА)). All glass samples are investigated by means of the steady-state luminescence and luminescence decay technique. The shift of Sm3+/Sm2+ excitation/emission maxima as well as changes in the spectral band's shape are clearly observed in dependence on wavelength. The luminescence decay follows non-exponential behavior even for low concentrations of Sm2O3. Moreover luminescence decay kinetics tends to evolve with registration wavelength. Existence of the distinguishable Sm3+/Sm2+ local sites in glass matrix studied could explain these phenomena.
Published Version
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