光谱学与光谱分析
Tb3+ 掺杂SiO2 纳米核壳结构绿光材料的制备及性能研究
闫志云1 ，胡晓云1* ，叶岩溪1 ，张德恺1 ，苗 慧1 ，樊 君2 ，姜振益3
1. 西北大学物理学系，陕西 西安 710069
Preparation and Luminescent Performance of Tb3+ Doped SiO2 Core-Shell Nanoparticles
YAN Zhi-yun1 , HU Xiao-yun1* , YE Yan-xi1 , ZHANG De-kai1 , MIAO Hui1 , FAN Jun2 , JIANG Zhen-yi3
1. Physics Department of Northwest University, Xi’an 710069, China
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1.2 g∶25 mL时，SiO2 ∶Tb3+ @SiO2 较未包覆SiO2 ∶Tb3+ 样品PL光谱强度增强，通过测试核壳结构材料的时间分辨光谱得到SiO2 ∶Tb3+ 纳米颗粒经SiO2 包覆后的荧光寿命延长。
关键词 ：Sol-Gel;核壳结构;TEM;发光性能;荧光寿命
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 ∶Tb2 had longer fluorescence life time than SiO2 ∶Tb3+ .
Key words ：Sol-gel;Core-shell;TEM;Luminescence properties;Fluorescence life
收稿日期: 2010-12-24
修订日期: 2011-03-20
通讯作者:
胡晓云
E-mail: hxy3275@nwu.edu.cn
引用本文:
闫志云1 ，胡晓云1* ，叶岩溪1 ，张德恺1 ，苗 慧1 ，樊 君2 ，姜振益3 . Tb3+ 掺杂SiO2 纳米核壳结构绿光材料的制备及性能研究[J]. 光谱学与光谱分析, 2011, 31(12): 3190-3193.
1 , HU Xiao-yun1* , YE Yan-xi1 , ZHANG De-kai1 , MIAO Hui1 , FAN Jun2 , JIANG Zhen-yi3 . Preparation and Luminescent Performance of Tb3+ Doped SiO2 Core-Shell Nanoparticles. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(12): 3190-3193.
链接本文:
https://www.gpxygpfx.com/CN/10.3964/j.issn.1000-0593(2011)12-3190-04
或
https://www.gpxygpfx.com/CN/Y2011/V31/I12/3190
[1] Zhu Chaofeng, Liang Xiaoluan, Yang Yunxia, et al. Journal of Luminescence, 2010, 130(1): 74.
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