| Eu3+掺杂钨酸钇体系荧光粉的制备及发光性能分析 |
| |
| 引用本文： | 叶啸峰,,谢安,.Eu3+掺杂钨酸钇体系荧光粉的制备及发光性能分析[J].厦门理工学院学报,2022,0(1):58-64. |
| |
| 作者姓名： | 叶啸峰 谢安 |
| |
| 作者单位： | （1福建省功能材料及应用重点实验室，福建 厦门 361024；2厦门理工学院材料科学与工程学院，福建 厦门 361024) |
| |
| 摘 要： | 氧化钇(Y2O3)、 氧化铕(Eu2O3)与三氧化钨(WO3)为原材料，通过调整Y2O3(Eu2O3)与WO3的摩尔比例，采用高温固相法制备钨酸钇体系红色荧光粉，通过X射线衍射(XRD)、扫描电子显微镜(SEM)、光致发光(PL)等表征分析样品的晶相结构、形貌尺寸和光致发光性质。研究结果表明:当Y2O3与WO3的摩尔比例为1∶1和1∶3时，可分别合成纯相的Y2WO6:Eu3+红色荧光粉和Y2W3O12:Eu3+红色荧光粉；该系列红色荧光粉可被近紫外光和蓝光有效激发，发射峰值位于615 nm(Eu3+离子的5D0→7F2跃迁)的红光；Y2WO6:Eu3+红色荧光粉的相对发光强度明显优于Y2W3O12:Eu3+红色荧光粉；Y2WO6:Eu3+红色荧光粉Eu3+的最佳掺杂浓度(摩尔分数)为5%。
|
| 关 键 词： | 红色荧光粉 Eu3+ 钨酸钇体系红色荧光粉 高温固相法 光致发光 |
reparation and Luminescence Properties ofEu3+ Doped Yttrium Tungstate Phosphors |
| |
| YE Xiaofeng,,XIE An,.reparation and Luminescence Properties ofEu3+ Doped Yttrium Tungstate Phosphors[J].Journal of Xiamen University of Technology,2022,0(1):58-64. |
| |
| Authors: | YE Xiaofeng XIE An |
| |
| Affiliation: | 1.Fujian Key Laboratory of Functional Materials and Applications,Xiamen 361024,China;2.School of Materials Science and Engineering,Xiamen University of Technology,Xiamen 361024,China) |
| |
| Abstract: | sing yttrium oxide (Y2O3),europium oxide (Eu2O3) and tungsten trioxide (WO3) as raw materials,Yttrium tungstate system red phosphors were prepared by high temperature solid state method by adjusting the molar ratio of Y2O3 (Eu2O3) to WO3.The crystal structure,morphology,size and photoluminescence properties of the samples were characterized by X ray diffraction (XRD),scanning electron microscope (SEM) and photoluminescence (PL).The results showed that pure Y2WO6:Eu3+ red phosphors and Y2W3O12:Eu3+ red phosphors were synthesized when the molar ratio of Y2O3 to WO3 was 1∶1 and 1∶3,respectively.This series of red phosphors can be effectively excited by near ultraviolet and blue light,and emit red light with a peak at 615 nm (5D0→7F2 transition of Eu3+ ions).It is found that the relative luminescence intensity of Y2WO6:Eu3+ red phosphor is significantly better than that of Y2W3O12:Eu3+ red phosphor.In addition,the concentration quenching mechanism of Eu3+ doped Y2WO6 red phosphor is discussed,and the optimal doping concentration is determined to be 5%. |
| |
| Keywords: | ed phosphors Eu3+ yttrium tungstate system red phosphor high temperature solid state method photoluminescence |
|
| 点击此处可从《厦门理工学院学报》浏览原始摘要信息 |
|
点击此处可从《厦门理工学院学报》下载全文 |
|
