title: [Preparation and luminescent performance of Tb3+ doped SiO2 core-shell nanoparticles].
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+.
authors.affiliation: Physics Department of Northwest University, Xi'an 710069, China. yanzhiyun1212@163.com
authors.forename: Zhi-yun
authors.initials: ZY
authors.lastname: Yan
authors.forename: Xiao-yun
authors.initials: XY
authors.lastname: Hu
authors.forename: Yan-xi
authors.initials: YX
authors.lastname: Ye
authors.forename: De-kai
authors.initials: DK
authors.lastname: Zhang
authors.forename: Hui
authors.initials: H
authors.lastname: Miao
authors.forename: Jun
authors.initials: J
authors.lastname: Fan
authors.forename: Zhen-yi
authors.initials: ZY
authors.lastname: Jiang