Spectral luminescence and information characteristics of transparent lead fluoride nano-glass-ceramics doped with erbium ions

Transparent oxyfluoride glass ceramics

“…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].…”

“…In particular, rare earth fluoride dopants (RF 3 ) decrease the stability of their glass matrices toward crystallization, acting as nucleators [39,97,46,47,56,123]. Thermal treatment of such glasses results in the appearance of these RF 3 species as primary crystalline nanophases [158,159].…”

“…1200 o C for germinate or borate glasses. Preparation of glass ceramics from of aluminosilicate [35-A c c e p t e d M a n u s c r i p t 6 40], silicate [41], silicoborate [42][43][44], lead-silicate [45][46][47], quartz [48][49][50][51][52][53], lead-germanate [54][55][56], tellurate-germanate [57], zinc-tellurate [58], lithiumborate, potassium-borate, barium-borate [59,60], tungsten-lead-phosphate [61] and others glasses with high metal fluoride content is thoroughly described in the literature (see Table 1). …”

Synthesis and optical properties of transparent glass ceramics with Eu,Yb:PbF2 nanocrystals

“…The optical properties of SiO 2 -PbF 2 -Al 2 O 3 -ZnF 2 -CdF 2 -YF 3 oxyfluoride glasses and transparent glass ceramics based on them with PbF 2 nanocrystals have been previously studied in [11][12][13][14]. In particular, the properties of Er 3+ ions (including the case of their sensitization by Yb 3+ [13]) were studied most extensively [11], which provided information on the optical absorption and IR and upconversion luminescence.…”

“…In addition, we propose a new chemical composition of a glass matrix synthesized based on a SiO 2 -PbO-PbF 2 -CdF 2 glass-forming system, which allowed us to decrease the crystal synthesis tempera-ture by 100-150°C with respect to the temperature of 1050°C reported in [11,12].…”