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Dy3+掺杂的LiY(MoO4)2发光材料的制备与光谱特性

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Abstract:

采用高温固相法在800℃制备了LiY(MoO4)2Dy3+荧光粉。研究了Dy3+掺杂量、合成温度以及Li+的过量加入对LiY(MoO4)2Dy3+荧光粉发光强度的影响。结果表明在紫外光(386nm)激发下,该荧光粉的发射光谱为1个峰值位于488nm和575nm的双峰谱线,其中位于575nm处的黄光发射最强;监测575nm发射峰得到的激发光谱为主峰位于351、366、386nm和426nm的线状谱线。煅烧温度为800℃时合成的荧光粉样品的发光强度达到最大,加入过量的Li+会降低发光强度。随Dy3+掺杂量的增大,荧光粉的发光强度逐渐增强,当Dy3+掺杂量为6%时发射的谱线强度最大。荧光粉的色参数表明,该荧光粉是一种较好的用于白光LED的黄色发光材料。

References

[1]  ? OFLET G S. Intensities of crystal spectra of rare-earth ions [J]. J Chem Phys, 1962, 37(3): 511–520.
[2]  ? DEXTER D L. A theory of sensitized luminescence in solids [J]. J Chem Phys, 1953, 21(5): 836–850.
[3]  ? 林琼斐, 夏海平, 王金浩, 等. Ga2O3组分对Tm3+掺杂GeO2–Ga2O3– Li2O–BaO–La2O3玻璃的光谱性能影响[J]. 物理学报, 2008, 57(4): 2554–2561.
[4]  LIN Qiongfei, XIA Haiping, WANG Jinhao, et al. Acta Phys (in Chinese), 2008, 57(4): 2554–2561.
[5]  ? ZHU C, YANG Y, LIANG X, et al. Rare earth ions doped full-color luminescence glasses for white LED [J]. J Lumin, 2007, 126(2): 707– 710.
[6]  ? GUO C F, DING X, SEO H J, et al. Luminescent properties of UV excitable blue emitting phosphors MSr4(BO3)3:Ce3+ (M = Li and Na)[J]. J Alloy Compd, 2011, 509(14): 4871–4874.
[7]  ? 关丽, 苗英会, 金利涛, 等. BaAl2Si2O8:Eu3+荧光粉的制备及发光性能. [J]. 硅酸盐学报, 2011, 39(5): 779–782.
[8]  GUAN Li, MIAO Yinghui, JIN Litao, et al. J Chin Ceram Soc, 2011, 39(5): 779–782.
[9]  ? WANG Z L, LIANG H B, WANG J, et al. A novel red phosphor for near UV InGaN light-emitting diode and its luminescent properties. [J]. Mater Res Bull, 2008, 43(4): 907–911.
[10]  ? LI Linlin, ZI Wenwen, LI Guanghuan, et al. Hydrothermal synthesis and luminescent properties of NaLa(MoO4)2:Dy3+ phosphor [J]. J Solid State Chem, 2012, 191: 175–180.
[11]  ? YI Linghong, HE Xipu, ZHOU Liya, et al. A potential red phosphor LiGd(MoO4)2:Eu3+ for light-emitting diode application [J]. J Lumin, 2010, 130(6): 1113–1117.
[12]  ? VAN VLIET J P M, BLASSE G, BRIXNER L H. Luminescence properties of alkali europium double tungstates and molybdates AEuM2O8. [J]. J Solid State Chem, 1988, 76(1): 160–166.
[13]  ? ZHOU L Y, WEI J S, GONG F Z, et al. A potential red phosphor ZnMoO4:Eu3+ for light-emitting diode application. [J]. J Solid State Chem, 2008, 181(6): 1337–1341.
[14]  ? LEE G H, KIM T H, YOON C, et al. Effect of local environment and Sm3+-codoping on the luminescence properties in the Eu3+-doped potassium tungstate phosphor for white LEDS [J]. J Lumin, 2008, 128(12): 1922–1926.
[15]  ? 吴春芳, 孟燮, 李杰, 等. 不同形貌的LaPO4:Dy荧光粉的制备及其真空紫外激发下的发光性能[J]. 物理学报, 2009, 58(9): 6518–6522.
[16]  WU Chunfang, MEMG Xie, LI Jie, et al. Acta Phys Sin (in Chinese), 2009, 58(9): 6518–6522.

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