NaLa1-xEux(WO4)2的燃烧法制备及发光性能
Combustion Synthesis and Luminescence Properties of NaLa1-xEux(WO4)2 Phosphors
摘要: 采用燃烧法制备了系列NaLa1–xEux(WO4)2红色荧光粉，探索了煅烧温度及Eu3+掺杂量对样品结构与发光性能的影响。分别利用X射线粉末衍射仪(XRD)、紫外/可见/近红外分光光度计(UV-vis)以及荧光分光光度计(PL)对样品进行了表征。结果表明：得到的样品具有四方晶系的白钨矿结构；荧光粉在紫外–近紫外波段均有较强的吸收，在394 nm近紫外光激发下得到发射谱图的主要发射峰为Eu3+的5D0→7F1橙光和5D0→7F2红光特征跃迁发射，红光发射的强度是橙光发射的~6.2倍，有利于得到色纯度较高的荧光粉。
Abstract: NaLa1–xEux(WO4)2 red phosphors were successfully synthesized by the combustion method. The influences of calcination temperature and Eu3+ doping amount on the structure and luminescence properties of as-synthesized sam-ples were explored. The phase composition and optical properties of as-synthesized samples were studied by X-ray powder diffraction and photoluminescence spectra. UV-vis spectra were used to measure the light absorption spectrum of the phosphors. The results show that the samples have the similar scheelite phase structure belonging to tetragonal system and have strong absorption in the region of UV and near-UV. The luminescence results show that the emission spectra under 394 nm excitation consist of the orange region 5D07F1 (594 nm) and the red region 5D07F2 (617 nm). The high ratio of the red emission to the orange emission is advantageous to obtain a phosphor with good CIE chroma-ticity coordinates.
文章引用：钱先华, 张大凤, 杜明霞, 高岩岩, 蒲锡鹏, 张秀兰, 马婧. NaLa1-xEux(WO4)2的燃烧法制备及发光性能[J]. 材料科学, 2012, 2(1): 18-21. http://dx.doi.org/10.12677/ms.2012.21003

参考文献

[1] C. Feldmann, T. Jüstel, C. R. Ronda, et al. Inorganic luminescent materials: 100 years of research and application. Advanced Functional Materials, 2003, 13(6): 511-516.
[2] M. William, S. Shionoya and H. Yamamoto. Phosphor Handbook (2nd Edition). Boca Raton: CRC Press, 2006: 340.
[3] Y. L. Huang, Y. Nakai, T. Tsuboi, et al. The new red-emitting phosphor of oxyfluoride Ca2RF4PO4:Eu3+ (R = Gd, Y) for solid state lighting applications. Optics Express, 2011, 19(7): 6303- 6311.
[4] G. Blasse, B. C. Grabmaier. Luminescent materials. Berlin: Sprin- ger Verlag, 1994.
[5] 孙家跃, 杜海燕. 固体发光材料[M]. 北京: 化学工业出版社, 2003.
[6] 吴洪鹏, 颜鲁婷, 王鹏等. 白光LED用钼酸盐体系红色荧光粉的研究进展[J]. 稀有金属材料与工程, 2009, 38(11): 2065- 2068.
[7] 薛宁, 邹永金, 樊先平. 稀土掺杂复式钨酸盐纳米晶体的制备及发光性能[J]. 材料科学与工程学报, 2007, 25(2): 217- 217.
[8] X. H. Qian, X. P. Pu, D. F. Zhang, et al. Combustion synthesis and luminescence properties of NaY1–xEux(WO4)2 phosphors. Journal of Luminescence, 2011, 131(8): 1692-1695.
[9] B. Glorieux, V. Jubera, A. Apheceixborde, et al. Luminescence properties of tungstates and molybdates phosphors: illustration on ALn(MO4)2 compounds (A = alkaline cation, Ln = lanthanides, M = W, Mo). Solid State Sciences, 2011, 13(2): 460-467.
[10] Y. Guo, M. Sun, W. M. Guo, et al. Luminescent properties of Eu3+ activated tungstate based novel red-emitting phosphors. Optics and Laser Technology, 2010, 42(8): 1328-1331.
[11] J. Gu, Y. C. Zhu, H. B. Li, et al. Morphology controllable synthesis and luminescence properties of NaLa(WO4)2:Eu microcrystals. Solid State Sciences, 2010, 12(7): 1192-1198.
[12] J. Gu, Y. C. Zhu, H. B. Li, et al. Uniform Ln3+ (Eu3+, Tb3+) doped NaLa(WO4)2 nanocrystals: Synthesis, characterization, and opti- cal properties. Journal of Solid State Chemistry, 2010, 183(3): 497-503.
[13] N. Xue, X. P. Fan, Z. Y. Wang, et al. Synthesis process and the luminescence properties of rare earth doped NaLa(WO4)2 nano- particles. Journal of Physics and Chemistry of Solids, 2008, 69 (8): 1891-1896.
[14] F. Wang, X. P. Fan, D. B. Pi, et al. Hydrothermal synthesis and luminescence behavior of rare-earth-doped NaLa(WO4)2 powders. Journal of Solid State Chemistry, 2005, 178(3): 825-830.
[15] J. J. Kingsley, K. C. Patil. A novel combustion process for the synthesis of fine particle α-alumina and related oxide materials. Materials Letters, 1998, 6(11): 427-432.

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