The High-Energy Milling Preparation and Spectroscopic Characterization of Rare-Earth Ions Doped BaY2F8 Nanoparticles

BaY2F8 nanoparticles (NPs), doped with Yb3+ and Er3+ ions, were successfully produced by high-energy ball-milling. High-quality monoclinic single crystals (sp. gr. C2/m, a = 0.6969(3), b 1.0502(1), c 0.4254(1) nm, β 99.676°) grown from the melt Bridgman technique used as raw materials. The prepared nanocrystals comprehensively studied X-ray diffraction analysis, transmission electron microscopy, optical spectroscopy. fabrication possibility of single-phase irregular shaped Ba(Y0.964Yb0.030Er0.006)2F8 NPs in size range 20–100 nm milling duration 10 h at 600 rpm is demonstrated. show intense luminescence both up- (λ 540 650 nm) down-conversion 1540 mechanisms upon IR excitation 980 nm). A qualitative comparison spectroscopic characteristics initial bulk crystal widely up-conversion β-Na1.5(Y1.17Yb0.3Er0.03)F6 presented. Experimental data offer great opportunities applications nanophotonics biotechnology. High-energy ball-milling has potential versatile method for scalable production fluoride nanoparticles.