Microstructural, spectroscopic and mechanical properties of hot-pressed Er:SrF2 transparent ceramics

Synthesis of SrF2:Yb:Er ceramic precursor powder by co-precipitation from aqueous solution with different fluorinating media: NaF, KF and NH4F

“…The development of a technology for producing optical fluoride ceramics from powder is a key achievement in optical materials science. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] One of the major challenges in obtaining optical ceramics is the quality of the starting powder for pressing. The concept of powder quality involves a large list of parameters: particle size distribution, particle morphology, specific surface area, acid-base properties of the surface, and adsorption of trace impurities on the surface of particles.…”

Upconverting SrF2:Er3+ Nanoparticles for Optical Temperature Sensors

“…Usually, the most convenient and frequently used matrices for Ln 3+ ions are fluorides. They are characterized by a low phonon energy (e.g., 286 cm –1 for SrF 2 ), which reduces the nonradiative processes of luminescence quenching and are transparent in the wide range . A good example of a fluoride host for Ln 3+ ions is SrF 2 , known for its good optical properties and possibility to be obtained as NPs .…”

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

“…Single crystals and ceramics of strontium fluoride doped with the rare earth ions are used as laser elements [4][5][6][7][8][9], effective phosphors [10] and fluoride solid electrolytes [11]. At the same time, activated strontium fluoride powders are precursors of optical ceramics [12][13][14][15][16][17][18][19], single crystals [20,21] and films, and are also of independent interest as phosphors [22][23][24][25][26][27][28][29][30][31], including as part of composites [32].…”