Enhanced luminescent properties of Tb3+ ions in transparent glass ceramics containing BaGdF5 nanocrystals

Transparent oxyfluoride glass ceramics

“…20 [143,144]: crystals are oriented in (111) Similarly, results of the HRTEM study of SrF 2 nanocrystals [143] coincided with Fourier-transformed data of X-ray diffraction analysis of the same material (Fig. 21) and indicated that Yb 3+ , Tb 3+ and/or Er 3+ -doped SrF 2 nanocrystals had smaller crystal lattice parameters and, therefore, contained the aforementioned rare earth dopants in fluorite-type SrF 2 nanophase.…”

“…Thus, many authors noted the enhanced luminescence properties of Eu [21,36,43,51,52,97,178,185,201,206,207,219], Er 3+ [45,47,56,57,91,184,187,220,357], Tb 3+ [43,72,178,111], Sm 3+ [63,223], Tm 3+ [178], Dy 3+ [274], Pr 3+ [41], and pair Eu 2+ /Mn 2+ [113] in oxifluoride glass ceramic in comparison with their glass precursors. Scintillation intensity of CaF 2 :Eu 2+ under X-ray exitation is weaker in glass ceramics compared to single crystal, alhough stronger than Eu 2+ -doped glass [71].…”

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.…”

Upconversion luminescence in BaYF5, BaGdF5 and BaLuF5 nanocrystals doped with Yb3+/Ho3+, Yb3+/Er3+ or Yb3+/Tm3+ ions

“…The crystal phases of the theoretical compositions of BaREF 5 have been obtained by many researchers [2,20,22,23,[53][54][55][56][57][58][59][64][65][66][67][68][69][70][71][72][73][74][75][76][77]. The first reports about BaYF 5 and BaLuF 5 date back to 1969, [78] and that on BaGdF 5 to 1988 [79].…”