Energy transfer mechanisms in green emitting LiBaPO4:Tb3+ phosphors

Ru-Yuan Yang; Hsuan-Lin Lai; Yu-Ming Peng; Shoou-Jinn Chang

doi:10.1117/12.2065346

6 August 2014 Energy transfer mechanisms in green emitting LiBaPO₄:Tb³⁺ phosphors

Ru-Yuan Yang, Hsuan-Lin Lai, Yu-Ming Peng, Shoou-Jinn Chang

Proceedings Volume 9232, International Conference on Optical Particle Characterization (OPC 2014); 92320Z (2014) https://doi.org/10.1117/12.2065346
Event: International Conference on Optical Particle Characterization (OPC 2014), 2014, Tokyo, Japan

Abstract

Green emitting LiBa_1-xPO4:xTb³⁺ up-conversion phosphors with various concentrations (x=0.1, 0.2, 0.3, 0.4, 0.5) of Tb³⁺ ions were synthesized by solid state reaction method at 1300 □ for 3 hour in air. The impure phases were appeared as Tb³⁺ ion concentration was further increased (x more than 0.2). The luminescence intensity reached a maximum when the concentration of Tb3+ ion was x = 0.2, and then decreased with the increases of the Tb³⁺ concentration due to concentration quenching effect. In addition, it is identified that the d-d interaction plays a major role in the mechanism of concentration quenching of LiBaPO₄:Tb³⁺ and all the chromaticity (x, y) of LiBa_1-xPO₄:xTb³⁺ phosphors are located in the green region (0.33, 0.56 ).

Citation Download Citation

Ru-Yuan Yang, Hsuan-Lin Lai, Yu-Ming Peng, and Shoou-Jinn Chang "Energy transfer mechanisms in green emitting LiBaPO₄:Tb³⁺ phosphors", Proc. SPIE 9232, International Conference on Optical Particle Characterization (OPC 2014), 92320Z (6 August 2014); https://doi.org/10.1117/12.2065346

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