Photoluminescence properties of dysprosium doped novel apatite-type Ba2Y3(SiO4)3F white-emitting phosphor

被引:22
作者
Deng, Bin [1 ,2 ]
Chen, Jun [1 ,2 ]
Liu, Hui [1 ,2 ]
Zhou, Chong-song [1 ,2 ]
机构
[1] Xiangnan Univ, Coll Chem & Biol & Environm Engn, Chenzhou 423043, Hunan, Peoples R China
[2] Hunan Prov Key Lab Xiangnan Rare Precious Met Cpd, Chenzhou 423043, Hunan, Peoples R China
关键词
LUMINESCENCE PROPERTIES; FLUOROSILICATE APATITE; EMISSION; BAND; ENVIRONMENT; HOST; IONS; EU3+; SR;
D O I
10.1007/s10854-019-01064-y
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A series of novel single-phased apatite-type white-light-emitting Ba2Y3(SiO4)(3)F: xDy(3+) (x=0.005, 0.007, 0.01, 0.02, 0.03, 0.05, and 0.08) phosphors were prepared via a facile solid-state reaction. X-ray diffraction patterns of these phosphors revealed that all the samples have a single-phase fluorosilicate apatite with hexagonal structure. The Ba2Y3(SiO4)(3)F:Dy3+ phosphor can absorb in the UV-vis spectral region of 300-480nm and presented a white light emission, including three peaks at 478, 573, and 663nm, attributed to the (F9/2H15/2F9/2H13/2)-F-4-H-6-F-4-H-6, and (F9/2H11/2)-F-4-H-6 transitions of Dy3+ ions, respectively. The optimized doping concentration of Ba2Y3(SiO4)(3)F: xDy(3+) ions was 2%. The Ba2Y3(SiO4)(3)F: 0.02Dy(3+) with excellent thermal stability could maintain the emission intensity about 87% at 150 degrees C of that at room temperature. The chromatic properties of Ba2Y3(SiO4)(3)F: xDy(3+) were been found into the white light region. The experimental results reveal that the synthesized phosphor has potential applications in white LEDs.
引用
收藏
页码:7507 / 7513
页数:7
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