Structure and luminescent properties of Ca3Bi(PO4)3:Sm3+ orange phosphor
Structure and luminescent properties of Ca3Bi(PO4)3:Sm3+ orange phosphor
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Ca3Bi(PO4)3:Sm3橙色荧光粉的结构与发光性能
DOI：
10.1007/s10854-016-5865-7
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发表时间：
2017-02-01
影响因子：
2.8
通讯作者：
Lin, Dunmin
中科院分区：
文献类型：
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作者：
Zou, Xiao;He, Lihua;Lin, Dunmin
采用固相反应法合成了一系列Ca 3Bi 1-x（PO 4）（3）：xSm（3+）橙色荧光粉，并对其晶体结构和发光性能进行了研究。Sm ~（3+）的掺杂对Ca_3Bi（PO_4）_3粉体的晶体结构没有明显影响，所有样品都具有立方对称性。在401 nm激发下，样品在561、598和644 nm处出现三个典型的发射带，分别对应于（4）G（5/2）→ H-6（5/2）、H-6（7/2）和H-6（9/2）跃迁。当x = 0.03时，样品具有最佳的发光性能。根据Dexter的理论，Sm ~（3+）之间的能量传递类型为偶极-偶极相互作用。CIE色度坐标表明，Ca_3Bi_（0.97）（PO_4）（3）：0.03 Sm（3+）的发光位于橙子区域。结果表明，该磷光体可用作基于NUV的白色LED的橙子磷光体。
A series of orange-emitting Ca3Bi1-x (PO4)(3):xSm(3+) phosphors were synthesized by a solid state reaction, the crystal structure and luminescent properties of the materials were studied. The doping of Sm3+ has no obvious influence on the crystal structure of the Ca3Bi(PO4)(3) powders and all the samples possess a cubic symmetry. Under the 401 nm excitation, the sample exhibits three typical emission bands located at 561, 598, and 644 nm corresponding to (4)G(5/2) -> H-6(5/2), H-6(7/2), and H-6(9/2) transitions, respectively. For x = 0.03, the sample exhibits an optimum luminescence. The type of energy transfer between Sm3+ is considered as dipole-dipole interaction according to Dexter's theory. The CIE chromaticity coordinates indicate that the emission of Ca3Bi0.97(PO4)(3):0.03Sm(3+) locates in orange region. The results indicate that the phosphor may be used as an orange phosphor for NUV-based white LEDs.