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CeF3: Tb3+/SiO2 (core/shell) nanostructure：surface coating and photoluminescence

JIANHUA WU1, BING YAN1,*

Affiliation

  1. Department of Chemistry, Tongji University, Shanghai 200092, China

Abstract

CeF3: Tb3+/SiO2 (Core/Shell) with nanostructure were prepared by a complex method based on the surface modification of CeF3: Tb3+ nanoparticles, which crystallized well with a hexagonal structure. The mean grain size of CeF3: Tb3+ and CeF3: Tb3+/SiO2 are 10 nm and 14 nm, respectively. Both of them showed green emission corresponded 5D4 –7FJ transition of Tb3+, and especially the silica film increased the luminescent intensity and lifetimes of CeF3: Tb3+ nanoparticles..

Keywords

Surface coating, Nanocrystalline materials, Nanostructure, Luminescence.

Submitted at: Oct. 22, 2007
Accepted at: Dec. 10, 2008

Citation

JIANHUA WU, BING YAN, CeF3: Tb3+/SiO2 (core/shell) nanostructure：surface coating and photoluminescence, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 12, pp. 3274-3278 (2008)