Efficient radioluminescence of the Ce3+-doped Na–Gd phosphate glasses

Abstract

Photo- and radioluminescence, decay kinetics, and thermoluminescence are reported for a set of Ce3+-doped phosphate glasses. The presence of Gd3+ ions in the glass host matrix at concentrations above 20% enhances the energy transfer towards the Ce3+ emission centers, which results in a remarkable enhancement of the radioluminescence light output.

Effect of RE3+ as a co-dopant in long-lasting phosphorescence CdSiO3:Mn2+ (RE=Y, La, Gd, Lu)

“…The former broadband located at 232 nm belong to the host absorption, while the weak shoulder broadband located at 263 nm can be attributed to the transition of Mn 2+ ( 6 A 1g (S)-4 A 1g (F)) [12,13]. For the Gd 3+ -doped sample, a small sharp peak located at 275 nm is observed besides the two broad bands mentioned above, which can be attributed to the Gd 3+ f-f transition ( 8 S 7/2 -6 I J ) [14,15]. The presence of both Gd 3+ and Mn 2+ excitation confirms the sensitization of Mn 2+ by Gd 3+ .…”

Effect of Tb3+ concentration and sensitization of Ce3+ on luminescence properties of terbium doped phosphate scintillating glass

“…In recent years, many attentions have been paid on phosphate scintillating glass [15][16][17], because it has many advantages such as high doping concentration of rare-earth ions, good radiative resistance and thermal stability for drawing fiber. However, some other important properties of phosphate glass have been ignored by these previous research work, such as low covalency and high transmittance in UV region, which can reduce the host absorption to the recombination energy of e-h pair in UV region and are beneficial for studying the 4f-5d transitions of Tb 3+ ions and the sensitization of Ce 3+ ions to the emission of Tb 3+ ions [18].…”

Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

“…Rare-earth activated scintillating glasses, owing to the advantages of low-cost, large-volume production as well as easy shaping of elements, have been developed to be one of the most promising candidates for scintillators [1][2][3]. From the viewpoint of application in high-energy physics as well as industrial and medical imaging, the density of scintillating glass is usually required to exceed 5.0 g/cm 3 .…”