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| Tb3+掺杂SiO2纳米核壳结构绿光材料的制备及性能研究 | |
| 作者姓名： | Yan ZY Hu XY Ye YX Zhang DK Miao H Fan J Jiang ZY |
| 作者单位： | 1. 西北大学物理学系,陕西西安,710069 2. 西北大学化工学院,陕西西安,710069 3. 西北大学现代物理所,陕西西安,710069 |
| 基金项目： | 西北大学研究生创新基金项目(09YSY08); 国家自然科学基金项目(20876125); 高等学校博士学科点专项科研基金项目(20096101110013); 陕西省自然基金项目(2011JM1001,2010JZ002)资助 |
| 摘 要： | 用Sol-Gel法合成了SiO2包覆SiO2:Tb3+的纳米核壳颗粒(用SiO2:Tb3+ @SiO2表示),并研究了核壳配比和制备工艺对其发光性能的影响.TEM和EDS表明SiO2溶液成功包覆于SiO2:Tb3+表面;通过测试荧光性能,发现制备工艺为壳层先陈化再放入核、核壳配比为1.2g∶ 25 mL时,SiO2∶T... |
| 关 键 词： | Sol-Gel 核壳结构 TEM 发光性能 荧光寿命 |
Preparation and luminescent performance of Tb3+ doped SiO2 core-shell nanoparticles |
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| Yan ZY,Hu XY,Ye YX,Zhang DK,Miao H,Fan J,Jiang ZY.Preparation and luminescent performance of Tb3+ doped SiO2 core-shell nanoparticles[J].Spectroscopy and Spectral Analysis,2011,31(12):3190-3193. | |
| Authors: | Yan Zhi-yun Hu Xiao-yun Ye Yan-xi Zhang De-kai Miao Hui Fan Jun Jiang Zhen-yi |
| Institution: | YAN Zhi-yun1,HU Xiao-yun1,YE Yan-xi1,ZHANG De-kai1,MIAO Hu i1,FAN Jun2,JIANG Zhen-yi3 1.Physics Department of Northwest University,Xi'an 710069,China 2.Chemical Engineering Institute of Northwest University,Xi'an 7100 69,China 3.Modern Physics Department of Northwest University,China |
| Abstract: | The authors synthesized the core-shell nanoparticles of SiO2-coated SiO2:Tb3+ by using sol-gel method (SiO2:Tb3+ @SiO2), and studied the influence of core-shell ratio and preparation craftwork on its luminescence properties. The photograph of TEM and EDS showed that SiO2:Tb3+ were coated successfully by SiO2. The authors found that the samples of SiO2:Tb3+ @SiO2 prepared by mixing of core and shell after shell aging with the ratio of core/shell being 1.2 g/25 mL had the stronger fluorescence intensity. Time-resolved spectra showed that the SiO2:Tb3+ @SiO2 had longer fluorescence life time than SiO2:Tb3+. |
| Keywords: | Sol-gel Core-shell TEM Luminescence properties Fluorescence life |
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