材料科学
发光
镝
钨酸盐
荧光粉
结晶度
锰
烧结
磁性
兴奋剂
离子
无机化学
化学工程
分析化学(期刊)
复合材料
冶金
化学
光电子学
有机化学
物理
工程类
量子力学
作者
Jae‐Yong Jung,Soung Soo Yi,Dae‐Youn Hwang,Chang-Sik Son
出处
期刊:Materials
[MDPI AG]
日期:2021-07-02
卷期号:14 (13): 3717-3717
被引量:8
摘要
The precursor prepared by co-precipitation method was sintered at various temperatures to synthesize crystalline manganese tungstate (MnWO4). Sintered MnWO4 showed the best crystallinity at a sintering temperature of 800 °C. Rare earth ion (Dysprosium; Dy3+) was added when preparing the precursor to enhance the magnetic and luminescent properties of crystalline MnWO4 based on these sintering temperature conditions. As the amount of rare earth ions was changed, the magnetic and luminescent characteristics were enhanced; however, after 0.1 mol.%, the luminescent characteristics decreased due to the concentration quenching phenomenon. In addition, a composite was prepared by mixing MnWO4 powder, with enhanced magnetism and luminescence properties due to the addition of dysprosium, with epoxy. To one of the two prepared composites a magnetic field was applied to induce alignment of the MnWO4 particles. Aligned particles showed stronger luminescence than the composite sample prepared with unsorted particles. As a result of this, it was suggested that it can be used as phosphor and a photosensitizer by utilizing the magnetic and luminescent properties of the synthesized MnWO4 powder with the addition of rare earth ions.
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