The Luminescence Properties of Ca₃(BO₃)₂ Doped with Ce³⁺, Tb³⁺

Abstract:

The phosphors Ca₃(BO₃)₂: Ce³⁺, Ca₃(BO₃)₂: Tb³⁺ and Ca₃(BO₃)₂: Ce³⁺, Tb³⁺ were synthesized by the solid-state reaction method at high temperature. The phase purity was characterized by the powder x-ray diffraction (XRD). The luminescence properties were investigated by ultraviolet (UV)-Vis spectra. For the phosphor Ca₃(BO₃)₂: Ce³⁺, the lowest 5d levels, the emission and the Stokes shifts of Ce³⁺ in the host lattice are identified. For the phosphor Ca₃(BO₃)₂: Tb³⁺, the f-d transitions of Tb³⁺ in the host lattice are assigned and discussed. Moreover, the energy transfer phenomenon between Ce³⁺ and Tb³⁺ in Ca₃(BO₃)₂: Ce³⁺, Tb³⁺ has been discussed. The emission of Tb³⁺ is remarkably enhanced due to energy transfer from Ce³⁺ to Tb³⁺ when Ce³⁺, Tb³⁺ doped together in Ca₃(BO₃)₂.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 647-652
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.647
• Online since: June 2014
• Authors: Hui Hong Lin*, Yan Ru Lin, Gui Po Fang
• Keywords: Ca₃(BO₃)₂, Ce³⁺, Luminescence, Tb³⁺

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