Cathodoluminescence of oxyfluoride glass-ceramics

Tb, Ce, Eu activated oxyfluoride glass-ceramics with the composition SiO2 · Al2O3 · Li2O · LaF3 have been studied by cathodoluminescence (CL). We compared CL intensities and decay times of the Tb, Ce, Eu activated glass-ceramic samples and observed that the Tb activated sample has the most intense luminescence, but the Ce activated sample has the shortest decay times. Induced optical absorption and thermostimulated luminescence have been observed after X-ray irradiation of samples.

► We have studied Tb, Ce and Eu activated oxyfluoride glass-ceramics.
► Ce activated sample has the fastest cathodoluminescence decay times.
► X-ray excited luminescence shows, that Tb activated sample is the most intense.
► Intensity of Tb activated sample is 10 times smaller than intensity of CsI(Tl).