Luminescence behavior of Tb3+ ions in transparent glass and glass-ceramics containing CaF2 nanocrystals

Transparent oxyfluoride glass ceramics

“…Certain advantages of oxyfluoride glass ceramics over entirely fluoride glass ceramics and fluoride glasses have already been discussed, too, but here, we would like to mention another preponderance for oxyfluoride glass ceramics. Rare earth dopants and co-dopants can be introduced in the initial glass batch as oxides, which are more stable and less hygroscopic than the corresponding fluorides [38,72,73,115]. These rare earth ions will reside in the formed nanocrystal A c c e p t e d M a n u s c r i p t 8 phase(s) of the obtained glass ceramics anyway.…”

“…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].…”

Upconversion luminescence in erbium doped transparent oxyfluoride glass ceramics containing hexagonal NaYF4 nanocrystals

“…In order to achieve highly efficient UCL in the OxFGC, the crystalline phase is expected to have low phonon energy and high solubility of RE ions. Different systems of OxFGC with RE doped LaF 3 [8], YF 3 [9], CaF 2 [10], SrF 2 [11], BaF 2 [12], NaLaF 4 [13,14], NaGdF 4 [15][16][17] and others have been reported.…”

Luminescent properties of Eu3+-doped glass ceramics containing BaGdF5 nanocrystals under NUV-excitation for W-LEDs

“…Nanocrystals and glass phase were distributed homogeneously in glass ceramics by glass annealing. Glass ceramics can keep high transparency by controlling the size and phase of microcrystal, which have been a hot matrix materials rare ions doped [9][10][11][12][13]. Rare earth doped BaYF 5 and BaLuF 5 3 both have been reported [14 15].…”