| Preparation of Y2O3：Eu^3＋ phosphor by molten salt assisted method |
| |
| 引用本文： | 黄燕 叶红齐 庄卫东 胡运生 赵春雷 李萃 郭松霞. Preparation of Y2O3：Eu^3＋ phosphor by molten salt assisted method[J]. 中国有色金属学会会刊, 2007, 17(3): 644-648. DOI: 10.1016/S1003-6326(07)60149-6 |
| |
| 作者姓名： | 黄燕 叶红齐 庄卫东 胡运生 赵春雷 李萃 郭松霞 |
| |
| 作者单位： | [1]School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; [2]National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Beijing 100088, China; [3]Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414000, China |
| |
| 摘 要： | A kind of fine and quasi-spherical Y2O3：Eu^3＋ phosphor was prepared by firing a preparative precursor at 1 200 ℃ for 2 h with the molten salts of Na2CO3, S and NaCl. The precursor was obtained by homogeneous precipitation of yttrium and europium with oxalic acid when using EDTA, citric acid or starch as complexant. The structure and morphology of the phosphors were characterized by XRD and SEM, respectively. The influence of complexing environment, firing temperature and molten salts on formation of the phosphor Y2O3：Eu^3＋ was discussed. The result show that the prepared Y2O3：Eu^3＋ phosphor is of quasi-spherical structure with size of 2-3 μm. Its luminescent intensity is 30% higher than that of the same phosphor prepared by the same procedure but without molten salts, and is 5% higher than that of commercial Y2O3：Eu^3＋ red phosphor.
|
| 关 键 词： | 熔盐 均匀沉淀 形态学 发光性质 |
| 收稿时间： | 2006-09-01 |
| 修稿时间： | 2006-09-012006-12-11 |
Preparation of Y2O3: Eu3+ phosphor by molten salt assisted method |
| |
| HUANG Yan,YE Hong-qi,ZHUANG Wei-dong,HU Yun-sheng,ZHAO Chun-lei,LI Cui,GUO Song-xia. Preparation of Y2O3: Eu3+ phosphor by molten salt assisted method[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(3): 644-648. DOI: 10.1016/S1003-6326(07)60149-6 |
| |
| Authors: | HUANG Yan YE Hong-qi ZHUANG Wei-dong HU Yun-sheng ZHAO Chun-lei LI Cui GUO Song-xia |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Beijing 100088, China; 3. Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414000, China |
| |
| Abstract: | A kind of fine and quasi-spherical Y2O3:Eu3+ phosphor was prepared by firing a preparative precursor at 1 200 °C for 2 h with the molten salts of Na2CO3, S and NaCl. The precursor was obtained by homogeneous precipitation of yttrium and europium with oxalic acid when using EDTA, citric acid or starch as complexant. The structure and morphology of the phosphors were characterized by XRD and SEM, respectively. The influence of complexing environment, firing temperature and molten salts on formation of the phosphor Y2O3:Eu3+ was discussed. The result show that the prepared Y2O3:Eu3- phosphor is of quasi-spherical structure with size of 2–3 μm. Its luminescent intensity is 30% higher than that of the same phosphor prepared by the same procedure but without molten salts, and is 5% higher than that of commercial Y2O3:Eu3+ red phosphor. |
| |
| Keywords: | Y2O3:Eu3 molten salt homogeneous precipitation morphology luminescent property |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
