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The red-emitting phosphors of Sm3+ ions doped KGd(MoO4)2 were synthesized by a high temperature solid state reaction method. The X-ray diffraction patterns confirmed that the principal crystalline phase of the sample was KGd(MoO4)2. The photoluminescence (PL) excitation spectra of KGd(MoO4)2:Sm3+ showed a series of absorption peaks in the range of 300–500nm and the strongest excitation peak at 406nm...
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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