A Simple and Highly Efficient Method for Synthesis of Ce3+‐Activated Borogermanate Scintillating Glasses in Air

Fast Ce3+-activated borogermanate scintillating glasses with the density of 5.58–5.67 g/cm3 were synthesized by melt quenching method in air atmosphere for the first time. The optical transmittance and X-ray absorption near edge spectroscopy results confirm that Ce4+ ions can be effectively reduced to Ce3+ ions by adding 0.31 mol% Si3N4 as a strong reducing agent during glass synthesis. The luminescence behavior under both ultraviolet and X-ray excitations indicate that the proposed Ce3+-activated borogermanate scintillating glasses have a broad emission band centered at 430 nm and a decay time of less than 25 ns. This will be of great interest in high-energy physics and nuclear physics engineering.

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