Gd3+→Eu2+ Energy Transfer in BaLiF3:Eu,Gd

Abstract

Abstract: Photoluminescence characteristics and the energy transfer between Gd³⁺ and Eu²⁺ in BaLiF₃ matrix have been investigated. Aseries of concentrations of Gd³⁺ ion with a fixed Eu²⁺concentration doped in BaLiF₃:Gd³⁺, Eu²⁺ has been studied. When the doping concentration for Gd³⁺ was 0.3%, the system reached the highest energy transfer efficiency. Due to the competitive absorption for the Gd³⁺ and the Eu²⁺ ions in BaLiF₃:Gd³⁺:Eu²⁺, when the doping concentration for Gd³⁺ ion exceeded 0.3%, the continuously increasing concentration of Gd³⁺ ions caused the competitive absorption ratio for Gd³⁺ increasing and the emission intensity of Eu²⁺ decreasing. The energy transfer processes were discussed, while the transfer probability was calculated to be 1.35×10⁵s-1.

Key words: Complex fluoride, Rare earth ion spectrum, Energy transfer

CLC Number:

O616

TrendMD:

JIA Zhi-Hong, LI Hong, YE Ze-Ren, SHI Chun-Shan . Gd³⁺→Eu²⁺ Energy Transfer in BaLiF₃:Eu,Gd[J]. Chem. J. Chinese Universities, 2002, 23(3): 349.

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Gd³⁺→Eu²⁺ Energy Transfer in BaLiF₃:Eu,Gd

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