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CaMoO4:Ce/Tb发光材料的制备与性质研究
Preparation and Properties of CaMoO4: Ce/Tb Luminescent Materials
【摘要】 采用燃烧法成功合成了CaMoO4:Ce/Tb发光材料,研究了不同Tb3+/Ce3+摩尔比对样品发光性能的影响。利用扫描电子显微镜(SEM)、X-射线衍射(XRD)、荧光光谱(FS)对材料结构及性能进行了表征。结果表明,当nTb∶nCe为1∶3时,样品的形貌最佳,合成的CaMoO4样品XRD图谱衍射峰及强度与标准卡号JCPDS 29-0351基本一致,在295 nm波长激发下,样品的发射光谱在403 nm和450 nm处出现较强发射峰,当nTb∶nCe为1∶2时,材料发光强度最大。
【Abstract】 CaMoO4:Ce/Tb luminescent materials were prepared using combustion method. The effect of Tb3+/Ce3+ion molar ratios on luminescent performance of the sample were investigated. The structure and luminescence properties of the materials were characterized using X-ray diffractor(XRD), scanning electron microscope(SEM), and fluorescence spectrometer(FS). the results showed that when nTb∶nCe was 1∶3, the samples had the best morphology, the diffraction peaks and intensity of the XRD spectrum of the synthesized CaMoO4 sample were consistent with the standard card number JCPDS 29-0351, with the optimal excitation at 295 nm, the emission peaks of the material were located at 403 nm and 450 nm, when nTb∶nCe was 1∶2, the luminescent intensity of the materials was strongest.
- 【文献出处】 广州化工 ,Guangzhou Chemical Industry , 编辑部邮箱 ,2023年17期
- 【分类号】TB34
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