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Sr3La(BO3)3:Ce, Sm and Sr2TiO4:Sm, Eu phosphors were prepared via solid-state reaction method. The X-ray diffraction patterns, photoluminescence, diffuse reflectance spectra, decay curves and energy transfer mechanism of phosphors were investigated in detail. The photoluminescence properties of the phosphors indicated the Ce → Sm energy transfer in Sr3La(BO3)3:Ce, Sm and Sm → Eu in Sr2TiO4:Sm, Eu...
The novel red-emitting Na3Gd2−x(BO3)3:xEu3+ phosphors were synthesized by a solid-state method. Under near ultraviolet excitation, the phosphors exhibit dominant emission peak at 614nm and generate bright red light, which is attributed to the electric-dipole transition 5D0→7F2. The optimal doping amount of Eu3+ in Na3Gd2−x(BO3)3:xEu3+ phosphors is x=0.3 for the maximum emission. The exchange interaction...
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