Preparation and investigation of Eu3+-activated ZnMoO4 phosphors for white LED
Preparation and investigation of Eu3+-activated ZnMoO4 phosphors for white LED
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白光LED用Eu3激活ZnMoO4荧光粉的制备及研究
DOI：
10.1007/s10854-015-3356-x
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发表时间：
2015-09-01
影响因子：
2.8
通讯作者：
Wang, Yandong
中科院分区：
文献类型：
--
作者：
Hu, Daqiang;Huan, Weiliang;Wang, Yandong
在空气气氛中，采用固相反应法在800 A ℃下合成了不同掺杂浓度的Eu 3+掺杂ZnMoO 4红色荧光粉。通过X射线衍射和拉曼光谱对荧光粉的结构进行了表征。利用激发光谱和发射光谱研究了荧光粉的光致发光特性。系统地讨论了Eu 3+浓度对ZnMoO 4：Eu 3+红色荧光粉结构和发光性能的影响。研究了ZnMoO 4：Eu 3+红色荧光粉在不同激发波长下的光致发光特性，以探索其在各种照明应用中的应用。在395 nm激发下，Zn0.8MoO4：0.2Eu（3+）荧光粉获得了色坐标为（0.666，0.334）的强红光发射和高色纯度。Zn 1-xMoO 4：xEu（3+）荧光粉可作为紫外和蓝光激发的红色荧光粉，在白色发光二极管中具有潜在的应用价值。
Eu3+-doped ZnMoO4 red phosphors with different doping concentrations were synthesized at the temperature of 800 A degrees C by solid-state reaction technique in air atmosphere. The structures of the phosphors were characterized by X-ray diffraction and Raman spectra. The excitation and emission spectra were used to investigate the photoluminescent properties of the phosphors. The effect of Eu3+ concentration on the structural and photoluminescent properties of ZnMoO4:Eu3+ red phosphors were discussed systemically. And the photoluminescent properties of ZnMoO4:Eu3+ red phosphors under different excitation wavelengths were investigated to find their utilities in various lighting applications. Strong red emission intensity and high color purity with chromaticity coordinates (0.666, 0.334) were obtained for Zn0.8MoO4:0.2Eu(3+) phosphors excited at 395 nm. The Zn1-xMoO4:xEu(3+) phosphors, which could be applied as red-emitting phosphors excited by ultra-violet and blue chips, have potential application in white light-emitting diodes.