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| 新型双钼酸盐红色荧光粉的制备及发光性能研究 | |
| 引用本文： | 谢安,杨伟艺,张旻澍.新型双钼酸盐红色荧光粉的制备及发光性能研究[J].中国稀土学报,2012,30(3):320-324. |
| 作者姓名： | 谢安 杨伟艺 张旻澍 |
| 作者单位： | 1. 厦门理工学院材料科学与工程系,福建厦门36102;福建富顺电子有限公司,福建漳州363000 2. 福建富顺电子有限公司,福建漳州,363000 3. 厦门理工学院材料科学与工程系,福建厦门36102 |
| 基金项目： | 福建省自然科学基金资助项目(2011J05142);教育部人文社科青年基金资助项目(11YJC820135) |
| 摘 要： | 采用高温固相法合成了一种新型的白光LED用双钼酸盐红色荧光粉,利用XRD,F-4500等对其进行了研究。结果表明:该系列荧光粉可以被近紫外光(396 nm)和蓝光(466 nm)有效激发,发射峰值位于615 nm(Eu3+离子的5D0→7F2跃迁)的红光;而且在钾铕双钼酸盐荧光粉KEu(MoO4)2中引入适量的钨酸能加强其发光强度,而不改变样品的发射光谱的形状和发射峰的位置。此外,在确定WO24-/MoO42最佳比值的前提下,文章还详细探讨了碱金属离子相互置换对样品发光性能影响的机制。 |
| 关 键 词： | 双钼酸盐 红色荧光粉 白光LED 稀土 |
Preparation and Luminescence Properties of Novel Double Molybdate Red Emitting Phosphor for White LEDs |
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| Xie An , Yang Weiyi , Zhang Minshu.Preparation and Luminescence Properties of Novel Double Molybdate Red Emitting Phosphor for White LEDs[J].Journal of the Chinese Rare Earth Society,2012,30(3):320-324. | |
| Authors: | Xie An Yang Weiyi Zhang Minshu |
| Institution: | Xie An1,2,Yang Weiyi2,Zhang Minshu1(1.Department of Materials Science and Engineering,Xiamen University of Technology,Xiamen 361024,China;2.Fujian Fushun Electronics Co.Ltd,Zhangzhou 363000,China) |
| Abstract: | The novel molybdenum-tungstate red emitting phosphor was successfully synthesized by the high temperature solid phase reaction.The spectrum and the crystal structure of the phosphor were characterized by F-4500 and XRD.The results indicated that the most intense peak of emission spectrum was located at 615 nm,which corresponded to the 5D0→7F2 transition of Eu3+,and the appropriate W6+ addition was favorable for the improvement of relative luminosity,shapes and positions of excited and emissive spectra of the phosphors without changing.Moreover,the investigation on the mechanism of influence of the replacement of K+ by Na+ or Li+ on luminescent properties of the phosphors under the premise of the optimal ratio of WO2-4 to Mo2-4 was carried out. |
| Keywords: | double molybdate red emitting phosphor white LEDs rare earths |
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