亚微米级红色荧光粉NaEu(MoO4)2的水热合成及光谱特性
Hydrothermal Synthesis and Spectral Properties of NaEu(MoO4)2 Red Submicro-Phosphors
作者单位
张 艳 河北师范大学化学与材料科学学院石家庄 050016 
宫慧丽 河北师范大学化学与材料科学学院石家庄 050016 
石士考 河北师范大学化学与材料科学学院石家庄 050016 
周 济 清华大学材料科学与工程系北京 100084 
叶建平 中国科学院化学研究所光化学重点实验室北京 100080 
摘要: 
关键词: 荧光粉  Eu3+  水热合成  钼酸盐
基金项目: 
Abstract: The hyperfine red phosphors, NaEu(MoO4)2, were synthesized by hydrothermal and subsequent heat-treatment processes. The NaEu(MoO4)2 phosphors show regular elliptical morphologies, and the particle sizes of 0.25~0.3 μm. The excitation spectra located at short-wavelength UV region belong to the interweave broad charge transfer bands of Mo6+-O2- and Eu3+-O2-, and the three sharp lines around 395 nm, 465 nm and 535 nm are ascribed to the Eu3+ 4f excitation transitions. All of the samples can be excited with near-UV 395 nm light and exhibit the characteristic red emission of Eu3+ 5D07F2 transition. The relative red emission intensities of the optimum phosphors reach two-fold as compared with that of the commercial phosphors. The submicro-phosphors may be applied as red phosphors for white light emitting diodes.
Keywords: phosphor  Eu3+  hydrothermal synthesis  molybdate
 
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张 艳,宫慧丽,石士考,周 济,叶建平.亚微米级红色荧光粉NaEu(MoO4)2的水热合成及光谱特性[J].无机化学学报,2009,25(3):563-566.
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