Ce3+/Eu2+ doped SrSc2O4 phosphors: Synthesis, luminescence and energy transfer from Ce3+ to Eu2+

Observation of a red Ce3+ center in SrLu2O4:Ce3+ phosphor and its potential application in temperature sensing

“…1 xRe 3+ . [9][10][11][12][13][14][15][16][17] The following explanations may contribute to the existence of rare oxides as impurities: Lu 2 O 3 has low reactivity and is in excess in the raw materials according to the stoichiometric ratio of Sr 1−x Ln 2 O 4 :xRe 3+ . After sintering, the excess Lu 2 O 3 in the raw materials is left as an impurity.…”

“…15 Eu 2+ doped SrSc 2 O 4 phosphors show an emission band located in the deep red regions and Eu 2+ ions are considered to substitute Sr 2+ sites. 16 In host SrLu 2 O 4 , Eu 2+ ions are considered to occupy Sr 2+ sites and it shows red emission with poor thermal stability. 13 In SrLu 2 O 4 :Eu 3+ phosphor, Eu 3+ ions are considered to replace Lu 3+ sites showing red emission.…”

Recent progress of effect of crystal structure on luminescence properties of Ce3+–Eu2+Co-doped phosphors

“…20 Synthesis, luminescence and ET of Ce 3+ -to-Eu 2+ 2+ shows a red emission ranging from 650 to 775 nm with center at $702 nm. 21 Photoluminescence, ET and tunable color of Ce 3+ /Tb 3+ /Eu 2+ activated oxynitride phosphor with high brightness has been reported by Lv 2+ shows a blue emission in the range of 400-550 nm with center at 450 nm under excitation at 350 nm. 22 It can be seen that in the same host, different kinds of activator ions lead to different luminescence phenomenon.…”

Luminescence and energy transfer of single-phase white-emitting phosphor Ba2Mg(PO4)2:Ce3+, Eu2+ for white LEDs

“…1 To solve these problems, white LEDs can also be fabricated by near-ultraviolet (UV) LED or UV-LED pumping red/green/blue multi-phased phosphors or a single-phase white emitting phosphor. 2–4 Generally, a white emitting phosphor can be obtained by controlling the concentration of several rare earths, however, due to the lack of certain light components, the obtained white phosphor shows a low color rendering index and cannot be applied in practice. 6–11 Therefore, the discovery of new phosphors, the design of crystal structure and the optimization of luminescence performance are still the hot spots of current research.…”