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1. 河北大学 物理科学与技术学院, 河北 保定 071002
2. 河北大学 电子信息工程学院, 河北 保定 071002
纸质出版日期:2013-1-10,
收稿日期:2012-9-24,
修回日期:2012-11-25,
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杨志平, 刘鹏飞, 宋延春, 韩月, 赵引红, 吕梁, 潘飞. 白光LED用Ba<sub>3</sub>La(PO<sub>4</sub>)<sub>3</sub>:Dy<sup>3+</sup>荧光粉的制备与发光性能[J]. 发光学报, 2013,(1): 35-39
YANG Zhi-ping, LIU Peng-fei, SONG Yan-chun, HAN Yue, ZHAO Yin-hong, LV Liang, PAN Fei. Preparation and Luminescence Properties of Ba<sub>3</sub>La(PO<sub>4</sub>)<sub>3</sub>:Dy<sup>3+</sup> Phosphor for White LEDs[J]. Chinese Journal of Luminescence, 2013,(1): 35-39
杨志平, 刘鹏飞, 宋延春, 韩月, 赵引红, 吕梁, 潘飞. 白光LED用Ba<sub>3</sub>La(PO<sub>4</sub>)<sub>3</sub>:Dy<sup>3+</sup>荧光粉的制备与发光性能[J]. 发光学报, 2013,(1): 35-39 DOI: 10.3788/fgxb20133401.0035.
YANG Zhi-ping, LIU Peng-fei, SONG Yan-chun, HAN Yue, ZHAO Yin-hong, LV Liang, PAN Fei. Preparation and Luminescence Properties of Ba<sub>3</sub>La(PO<sub>4</sub>)<sub>3</sub>:Dy<sup>3+</sup> Phosphor for White LEDs[J]. Chinese Journal of Luminescence, 2013,(1): 35-39 DOI: 10.3788/fgxb20133401.0035.
通过高温固相法合成了一系列Ba
3
La
1-
x
(PO
4
)
3
:
x
Dy
3+
荧光粉材料。利用XRD测量样品的物相
结果显示样品为纯相Ba
3
La(PO
4
)
3
晶体。样品的激发光谱由一系列宽谱组成
峰值分别位于322
347
360
386
424
451nm。在347nm激发下
荧光粉在482nm(
4
F
9/2
6
H
15/2
)和575nm(
4
F
9/2
6
H
13/2
)处有很强的发射。研究了不同Dy
3+
掺杂浓度对样品发射光谱的影响
当Dy
3+
摩尔分数
x
=0.10时出现猝灭现象
浓度猝灭机理为电偶极-电偶极相互作用。确定了不同Dy
3+
掺杂浓度的Ba
3
La(PO
4
)
3
:Dy
3+
的荧光寿命。Ba
3
La(PO
4
)
3
:Dy
3+
荧光粉发射光谱的色坐标位于白光区域。
A series of Ba
3
La
1-
x
(PO
4
)
3
:
x
Dy
3+
phosphors were synthesized by a solid-state reaction method. The phase of the as-prepared samples were measured by X-ray diffraction pattern (XRD)
and the results showed that the samples were pure phase. The exciation spectrum includes a series of wide bands and the peaks which locate at 322
347
360
386
424
451 nm. The phosphor exhibits intense emission at 482 nm(
4
F
9/2
6
H
15/2
) and 575 nm(
4
F
9/2
6
H
13/2
) under 347 nm exciation. The effect of the doping concentration of Dy
3+
was investigated
the concentration quenching occurred when
x
=0.10 and the mechanism of concentration quenching was dipole-dipole interaction. The decay lifetime of different Dy
3+
-doped concentrations of Ba
3
La(PO
4
)
3
:Dy
3+
phosphors was confirmed. The chromaticity coordinates of Ba
3
La(PO
4
)
3
:Dy
3+
phosphors were measured
which were in the white region.
发光荧光粉白光Ba3La(PO4)3:Dy3+
luminescencephosphorwhite-emittingBa3La(PO4)3:Dy3+
Liu H Y, Sun M S, Yang Z P, et al. Luminescent properties of Sm3+ doped SrIn2O4 red emission phosphor[J]. Chin. J. Lumin. (发光学报), 2011, 32(1):38-41 (in Chinese).[2] Li X, Guan L, Sun M S, et al. Luminescent properties of Dy3+ doped SrMoO4 phosphor[J]. J. Lumin., 2011, 131 (5):1022-1026.[3] Pan Z F, Liu S, Zhu C J, et al. Preparation and luminescence of single-host white-light-emitting BaSrMg(PO4)2:Eu2+ phosphor for ultraviolet LEDs[J]. Spectrosc. Spectr. Anal.(光谱学与光谱分析), 2011, 31(11):2910-2913 (in Chinese).[4] Kuang J Y, Liu Y L. White-emitting long-lasting phosphor Sr2SiO4:Dy3+[J]. Chem. Lett., 2005, 34(4):598-599.[5] Shi Q, Zhang J Y, Zhang B Y. Progress on single-host phosphor used for white LED[J]. Mater. Rev.(材料导报), 2011, 25(11):53-57 (in Chinese).[6] Nagpure I M, Pawade V B, Dhoble S J. Combustion synthesis of Na2Sr(PO4)F:Dy3+ white light emitting phosphor[J]. J. Lumin., 2010, 25(1):9-13.[7] Gao D J, Li Y, Lai X, et al. Fabrication and luminescence properties of Dy3+ doped CaMoO4 powders[J]. Mater. Chem. Phys., 2011, 126(1/2):391-397.[8] Yang Z P, Ma X, Zhao P P, et al. Preparation and luminescence characteristics of SrAl2B2O7:Dy3+ phosphor[J]. Acta Phys. Sin.(物理学报), 2010, 59(8):5387-5391 (in Chinese).[9] Zhang L H, Zhong H Y, Li X P, et al. Solid state reaction synthesis and luminescence properties of Dy3+-doped Gd2Mo3O9 phosphor[J]. Physica B, 2012, 407(1):68-72.[10] Yang H M, Ou Y J, Shi R R, et al. Research progress of rare earth activated luminescent materials[J]. Mater. Rev.(材料导报), 2005, 19(6):1-3 (in Chinese).[11] Lan L J, Feng H M, Tang Y, et al. Novel blue-emitting phosphor NaMg4(PO4)3:Eu2+,Ce3+ with energy transfer[J]. Opt. Mater., 2011, 34(1):175-178.[12] Sun J Y, Zhang X Y, Xia Z G, et al. Synthesis and luminescence properties of novel LiSrPO4:Dy3+ phosphor[J]. Mater. Res. Bul., 2011, 46(11):2179-2182.[13] Song E H, Zhao W R, Zhou G X, et al. Luminescence properties of red phosphors Ca10Li (PO4)7:Eu3+[J]. J. Rare Earths, 2011, 29(5):440-443.[14] You P L, Yin G F, Chen X C, et al. Luminescence properties of Dy3+-doped Li2SrSiO4 for NUV-excited white LEDs[J]. Opt. Mater., 2011, 33(11):1808-1812.[15] Dexter D L, Schulman J H. Theory of concentration quenching in inorganic phosphors[J]. J. Chem. Phys., 1954, 22 (6):1063-1070.[16] Dexter D L. A theory of sensitized luminescence in solids[J]. J. Chem. Phys., 1953, 21(5):836-850.[17] Wang Q Z, Tian J, Yang X H, et al. Luminescence and energy transmission of Tb3+, Dy3+ avtivated LaBO3[J]. Chin. J. Lumin.(发光学报), 1995, 16(1):57-62 (in Chinese).
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