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

Structural and luminescence properties of Y2‐xGeMoO8:REx (RE = Eu, Tb) phosphors

“…We measured the emission property of Y 1.95 GeMoO 8 :Tb 0.05 excited by 392 and 489 nm. Similar to the emission of Tb 3+ in other host materials, three sharp characteristic luminescence peaks at 485, 540 and 583 nm were obtained in the emission spectra due to electronic transitions of the Tb 3+ ion (32,33). It is known that Tb 3+ has three main emission bands corresponding to the 5 D 4 → 7 F J transitions where J = 4, 5 and 6.…”

Luminescence properties of Tb3+-doped borosilicate scintillating glass under UV excitation

“…Since the energy difference between 5 D 3 and 5 D 4 level is very close to that between 7 F 6 and 7 F 0 level, the cross relaxation [Tb 3+ ( 5 D 3 ) + Tb 3+ ( 7 F 6 ) ? Tb 3+ ( 5 D 4 ) + Tb 3+ ( 7 F 0 )] between two Tb 3+ ions could occur when Tb 3+ ion is very close to another due to high concentration of Tb 3+ [24][25][26]. Thus the population of 5 D 3 level decreases and that of 5 D 4 level increases.…”

Enhanced radiation dosimetry of fluoride phosphate glass optical fibres by terbium (III) doping

“…However, for both scintillation and OSL recombination of electron-hole pairs may occur at dopant sites, this allows previous studies of scintillating materials to guide the fabrication of OSL-active glasses. Recent examples show increases in scintillation intensity due to rare earth ions in various materials: phosphate glass is shown to produce efficient scintillation with Tb 3+ and Ce 3+ -codoping [12], as is Tb 3+ :Gd 3+ -doped silicate oxifluoride glass [13,14] In this paper doping with Tb 3+ was used to enhance the OSL sensitivity of FP glass. Characterisation of the material using thermoluminescence (TL) and OSL showed various improvements to the structure of the electron traps, emission spectra and signal intensities.…”