| Ce3+掺杂对GdAl3(BO3)4:Dy3+和GdAl3(BO3)4:Tb3+荧光粉发光性能的影响 |
| |
| 引用本文： | 杨成浩,潘跃晓,张勤远.Ce3+掺杂对GdAl3(BO3)4:Dy3+和GdAl3(BO3)4:Tb3+荧光粉发光性能的影响[J].稀有金属材料与工程,2008,37(Z2):568-571. |
| |
| 作者姓名： | 杨成浩 潘跃晓 张勤远 |
| |
| 作者单位： | 华南理工大学,特种功能材料及其制备新技术教育部重点实验室,广东,广州,510641 |
| |
| 基金项目： | 国家自然科学基金
,
NCET重点项目 |
| |
| 摘 要： | 用湿化学方法合成了Ce3 /Dy3 及Ce3 /Tb3 共掺GdAl3(BO3)4发光材料.利用X射线衍射仪对其进行了物相分析,结果表明:合成物为纯的六方相GdAl3(BO3)4微晶.利用荧光分光光谱仪进行光谱分析,测定了合成样品的激发和发射光谱.发现在紫外激发下,GdAl3(BO3)4:Dy荧光粉发射出很强的偏黄的白光,其发射峰分别位于480,575和665 nm,对应于Dy3 的4F9/2→6H15/2,13/2,11/2跃迁.掺Ce3 对Dy3 起到敏化作用,GdAl3(BO3)4:Dy,Ce发出很亮的暖白光,且强度是GdAl3(BO3)4:Dy的3倍左右.同时,在Ce3 /Tb3 共掺的样品中,由于Ce3 与Tb3 间的能量传递,Tb3 的541 nm特征峰显著增强.
|
| 关 键 词： | 湿化学法 GdAl3(BO3)4 荧光粉 光致发光 wet-chemical method GdAl3(BO3)4 phosphor luminescence 掺杂 荧光粉 发光性能 影响 Influence Photoluminescence Properties Ions Doped compounds energy transfer doping doped characteristic green emission intensity factor enhancement presence associated typical |
| 文章编号： | 1002-185X(2008)S2-568-04 |
| 修稿时间： | 2007年11月22 |
Influence of Ce3+Ions on the Photoluminescence Properties of Dy3+or Tb3+ Doped GdAl3(BO3)4 Phosphors |
| |
| Yang Chenghao,Pan Yuexiao,Zhang Qinyuan.Influence of Ce3+Ions on the Photoluminescence Properties of Dy3+or Tb3+ Doped GdAl3(BO3)4 Phosphors[J].Rare Metal Materials and Engineering,2008,37(Z2):568-571. |
| |
| Authors: | Yang Chenghao Pan Yuexiao Zhang Qinyuan |
| |
| Abstract: | Ce3+/Dy3+and/or Ce3+/Tb3+ codoped GdAl3(BO3)4 phosphors were synthesised by a wet-chemical method.The phosphors were characterized by X-ray diffraction and fluorescence measurements.The GdAl3(BO3)4:Dy phosphors show intense emissions centred at 480,575,and 665 nm upon excitation by ultraviolet-blue light,which are associated with the typical transitions of 4F9/2→6H15/2,4F9/2→+6H13/2,and 4F9/2→6H11/2 of Dy3+,respectively.The presence of Ce3+ resulted in an enhancement of Dy3+ emission intensity by a factor of～3、The characteristic green emission at 541 nm of Tb3+ doped GdAl3(BO3)4 has been significantly enhanced with Ce3+ doping,confirming that energy transfer from Ce3+ to Tb3+ happens in the compounds. |
| |
| Keywords: | wet-chemical method GdAl3(BO3)4 phosphor luminescence |
| 本文献已被 万方数据 等数据库收录！ |
|
