College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Mar 15;105:626-31. doi: 10.1016/j.saa.2013.01.010. Epub 2013 Jan 17.
Ba(3)Bi(PO(4))(3):Sm(3+) phosphors were prepared via solid state reaction process. The crystal structure of the phosphor was characterized by XRD. The PL properties of Ba(3)Bi(PO(4))(3):Sm(3+) were investigated. The optimized phosphor with the composition of Ba(3)Bi(PO(4))(3):0.06Sm(3+) presents the several excitation bands from 300 to 500 nm, and exhibits very good luminescence properties. Under the excitation of ultraviolet 373, 401 and blue 467 nm, the phosphor presented red luminescence with dominating emissions at 563, 599, 646 and 709 nm, corresponding to (4)G(5/2)→(6)H(J) (J=5/2, 7/2, 9/2 and 11/9) transitions, respectively. The critical distance was calculated to be 21.0 Å. The energy transfer type between Sm(3+) ions was confirmed as the d-d interaction by using the Van Uitert model. The chromatic properties of the typical sample Ba(3)Bi(PO(4))(3):0.06Sm(3+) phosphor have been found to have chromaticity coordinates of (0.59, 0.38), under the excitation of 401 nm.
采用高温固相法制备了 Ba(3)Bi(PO(4))(3):Sm(3+) 荧光粉。通过 XRD 对荧光粉的晶体结构进行了表征。研究了 Ba(3)Bi(PO(4))(3):Sm(3+) 的光致发光性能。在优化的组成 Ba(3)Bi(PO(4))(3):0.06Sm(3+)下，荧光粉呈现出从 300nm 到 500nm 的多个激发带，表现出很好的发光性能。在紫外光 373nm、401nm 和蓝光 467nm 的激发下，荧光粉呈现出以 563nm、599nm、646nm 和 709nm 为主发射峰的红光发射，分别对应于(4)G(5/2)→(6)H(J) (J=5/2, 7/2, 9/2 和 11/9)跃迁。计算出的临界距离为 21.0Å。通过 Van Uitert 模型证实 Sm(3+)离子之间的能量传递类型为 d-d 相互作用。在 401nm 激发下，典型样品 Ba(3)Bi(PO(4))(3):0.06Sm(3+)的色度坐标为(0.59, 0.38)。
