Spectroscopy and Spectral Analysis, Volume. 31, Issue 12, 3190(2011)
Preparation and Luminescent Performance of Tb3+ Doped SiO2 Core-Shell Nanoparticles
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+.
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YAN Zhi-yun, HU Xiao-yun, YE Yan-xi, ZHANG De-kai, MIAO Hui, FAN Jun, JIANG Zhen-yi. Preparation and Luminescent Performance of Tb3+ Doped SiO2 Core-Shell Nanoparticles[J]. Spectroscopy and Spectral Analysis, 2011, 31(12): 3190
Received: Dec. 24, 2010
Accepted: --
Published Online: Jan. 5, 2012
The Author Email: Zhi-yun YAN (yanzhiyun1212@163.com)