Combustion Synthesis and Luminescence Properties of NaLa1-xEux(WO4)2 Phosphors
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 5D07F1 (594 nm) and the red region 5D07F2 (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 (2012) NaLa1-xEux(WO4)2的燃烧法制备及发光性能。 材料科学， 2， 18-21. doi: 10.12677/ms.2012.21003
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