| Sol-gel processed Ce^3＋, Tb^3＋ codoped white emitting phosphors in Sr2Al2SiO7 |
| |
| 引用本文： | 潘文,宁桂玲,林源,杨雪峰.Sol-gel processed Ce^3＋, Tb^3＋ codoped white emitting phosphors in Sr2Al2SiO7[J].中国稀土学报(英文版),2008,26(2):207-210. |
| |
| 作者姓名： | 潘文 宁桂玲 林源 杨雪峰 |
| |
| 作者单位： | PAN Wen（State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China） ;
NING Guiling（State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China） ;
LIN Yuan （State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China） ;
YANG Xuefeng（State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China） ; |
| |
| 基金项目： | 国家自然科学基金，辽宁省自然科学基金 |
| |
| 摘 要： | Sr2Al2SiO7：Ce^3＋, Tb^3＋ white emitting phosphors were fabricated using the sol-gel method. X-Ray Powder Diffraction （XRD） analysis confirmed the formation of Sr2Al2SiO7：Ce^3＋, Tb^3＋. Scanning Electron Microscopy （SEM） observation indicated that the microstructure of the phosphor consisted of regular fine grains with an average size of about 0.5-1 μm. Luminescence properties were analyzed by measuring the photoluminescence spectra. The Ce^3＋, Tb^3＋-codoped Sr2Al2SiO7 phosphors showed four main emission peaks： one at 414 nm for Ce^3＋ and three at 482, 543, and 588 nm for Tb^3＋. The emission spectra of the samples with different doping concentrations showed that the Tb^3＋ emission was dominant because of the persistent energy transfer from Ce^3＋. The decay characteristic was better than that prepared by the solid-state process in the comparable condition. The codoped phosphor displayed long persistent white phosphorescence.
|
| 关 键 词： | 溶胶-凝胶方法 稀土 荧光体 Sr2Al2SiO7 |
| 收稿时间： | 23 November 2007 |
Sol-gel processed Ce, Tb codoped white emitting phosphors in Sr2Al2SiO7 |
| |
| Wen PAN, Guiling NING, Yuan LIN,Xuefeng YANG.Sol-gel processed Ce, Tb codoped white emitting phosphors in Sr2Al2SiO7[J].Journal of Rare Earths,2008,26(2):207-210. |
| |
| Authors: | Wen PAN Guiling NING Yuan LIN Xuefeng YANG |
| |
| Affiliation: | State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China |
| |
| Abstract: | Sr2Al2SiO7:Ce3 , Tb3 white emitting phosphors were fabricated using the sol-gel method. X-Ray Powder Diffraction (XRD) analysis confirmed the formation of Sr2Al2SiO7:Ce3 , Tb3 . Scanning Electron Microscopy (SEM) observation indicated that the microstructure of the phosphor consisted of regular fine grains with an average size of about 0.5-1 μm. Luminescence properties were analyzed by measuring the photoluminescence spectra. The Ce3 , Tb3 -codoped Sr2Al2SiO7 phosphors showed four main emission peaks: one at 414 nm for Ce3 and three at 482, 543, and 588 nm for Tb3 . The emission spectra of the samples with different doping concentrations showed that the Tb3 emission was dominant because of the persistent energy transfer from Ce3 . The decay characteristic was better than that prepared by the solid-state process in the comparable condition. The codoped phosphor displayed long persistent white phosphorescence. |
| |
| Keywords: | sol-gel method luminescence phosphors Sr2Al2SiO7:Ce3 Tb3 rare earths |
| 本文献已被 维普 万方数据 ScienceDirect 等数据库收录！ |
|
