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A series of Sr3Bi1-x(PO4)3: xSm3+phosphors were prepared by solid state method at 1250 °C for 4 h. X-ray diffraction (XRD) indi-cated that the sample was of a pure phase of Sr3Bi(PO4)3. The main excitation peaks were located at 343 (6H5/2→4H9/2), 360 (6H5/2→4D3/2), 373 (6H5/2→6P7/2), 400 (6H5/2→4F7/2), 414 (6H5/2→6P5/2) and 467 nm (6H5/2→4I13/2). The main emission were located at 563 (4G5/2→6H5/2), 599 (4G5/2→6H7/2), 646 (4G5/2→6H9/2) and 708 nm (4G5/2→6H11/2). The intensest emission was excited by 400 nm. We studied the effect of differ-ent doping concentrations of Sm3+ activator on the luminescence properties and found that the luminescent intensity first increased with Sm3+ concentration increasing, and then decreased. The luminescent intensity had the best value when x=0.04. The chromaticity coordinates of the sample Sr3Bi0.96(PO4)3:0.04Sm3+ were (x=0.57, y=0.36), and the lifetime was 2.12 ms.
A series of Sr3Bi1-x (PO4) 3: xSm3 + phosphors were prepared by solid state method at 1250 ° C for 4 h. X-ray diffraction (XRD) indi-cated that the sample was a pure phase of Sr3Bi ) 3. The main excitation peaks were located at 343 (6H5 / 2 → 4H9 / 2), 360 (6H5 / 2 → 4D3 / 2), 373 (6H5 / 2 → 6P7 / 2) / 2), 414 (6H5 / 2 → 6P5 / 2) and 467 nm (6H5 / 2 → 4I13 / 2). The main emission were located at 563 (4G5 / 2 → 6H5 / 2) 6H7 / 2), 646 (4G5 / 2 → 6H9 / 2) and 708 nm (4G5 / 2 → 6H11 / 2). The intense emission was excited by 400 nm. We studied the effect of differ- ent doping concentrations of Sm3 + activator on the luminescence properties and found that the luminescent intensity first increased with Sm3 + concentration increasing, and then decreased. The luminescent intensity had the best value when x = 0.04. The chromaticity coordinates of the sample Sr3Bi0.96 (PO4) 3: 0.04Sm3 + were (x = 0.57, y = 0.36), and the lifetime was 2.12 ms.