|
|||||
|
|
| Pechini溶胶-凝胶法制备LuAG:Tb薄膜的显微结构及发光性能 | |
| 引用本文： | 王剑,沈思情,谢建军,施鹰,王宇,林挺,袁晖,艾飞. Pechini溶胶-凝胶法制备LuAG:Tb薄膜的显微结构及发光性能[J]. 精细与专用化学品, 2011, 19(4): 27-30 |
| 作者姓名： | 王剑 沈思情 谢建军 施鹰 王宇 林挺 袁晖 艾飞 |
| 作者单位： | 1. 上海大学材料科学与工程学院电子信息材料系,上海,200072 2. 上海宇昂化工科技发展有限公司,上海,200124 3. 中国科学院上海硅酸盐研究所,上海,200050 |
| 基金项目： | 上海市自然科学基金，上海科委基础研究重点项目，上海市重点学科，2008上海大学创新基金 |
| 摘 要： | 采用Pechini溶胶-凝胶法结合旋涂工艺制备了Tb3+掺杂Lu3Al5O12（简称LuAG:Tb）发光薄膜。前驱体薄膜在850℃左右锻烧得到单一石榴石相的LuAG:Tb薄膜。LuAG薄膜的发射光谱（268nm紫外光激发）对应于Tb3+的5D4→7EJ（J=6～0）和5D3→7FJ特征跃迁,光谱强度随Tb3+掺杂浓度的升高先增强后减弱,在x(Tb3+)=2.0%时光谱强度最强,其发光衰减时间为5.14ms。扫描电镜（SEM）和原子力显微镜（AFM）观察显示LuAG薄膜的颗粒度大小和表面粗糙度随煅烧温度的升高而增大。 |
| 关 键 词： | Pechini溶胶-凝胶法 LuAG∶Tb薄膜 光致发光 发光衰减 显微结构 |
Microstructure and luminescence properties of LuAG:Tb films prepared by sol-gel pechini method |
|
| WANG Jian,SHEN Si-qing,XIE Jian-jun,SHI Ying,WANG Yu,LIN Ting,YUAN Hui,AI Fei. Microstructure and luminescence properties of LuAG:Tb films prepared by sol-gel pechini method[J]. Fine and Specialty Chemicals, 2011, 19(4): 27-30 | |
| Authors: | WANG Jian SHEN Si-qing XIE Jian-jun SHI Ying WANG Yu LIN Ting YUAN Hui AI Fei |
| Affiliation: | 1.Department of Electronic Information Material,School of Material Science and Engineering,Shanghai University,Shanghai 200072,China;2.Shanghai Yuang Chemtech Co.,Ltd.,Shanghai 200124,China; 3.Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China) |
| Abstract: | Tb~（3＋）-doped Lu_3Al_5O_（12）（LuAG：Tb） scintillator films were successfully prepared by Pechini solgel method and spin-coating technique.The X-ray diffraction（XRD） showed that the precursor films started to crystallize at about 850℃.The emission spectrum of the film excited under 268nm showed the characteristic ~5D_4→~7F_ 1（J = 6~0） and ~5D_3→~7F_1 transitions of Tb~（3＋）.The luminous intensity of the LuAG：Tb films strengthened with the increasing of Tb~（3＋） doping concentration,and reached the maximum at doping with x（Tb~（3＋） ） =2.0%. The lifetime（r） of excited state for Tb~（3＋） was 5.14ms.The microstructure of the films observed by scanning electron microscope（SEM） and atomic force microscope（AFM） indicated that the grain size（D） and roughness increased with the increasing of calcination temperature. |
| Keywords: | Pechini sol-gel LuAG：Tb films photoluminescence decay microstructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |