Preparation and Luminescence Properties of Na2Ca2.92Si6O16:0.08Eu3+ Phosphors

GAO Shijie; WANG Hua; ZHANG Shanshan; QIAO Li; MAO Jinlong

doi:10.6054/j.jscnun.2019059

Journal of South China Normal University (Natural Science Edition) > 2019 > 51(4): 21-25. > DOI: 10.6054/j.jscnun.2019059

GAO Shijie, WANG Hua, ZHANG Shanshan, QIAO Li, MAO Jinlong. Preparation and Luminescence Properties of Na₂Ca_2.92Si₆O₁₆:0.08Eu³⁺ Phosphors[J]. Journal of South China Normal University (Natural Science Edition), 2019, 51(4): 21-25. DOI: 10.6054/j.jscnun.2019059

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Preparation and Luminescence Properties of Na₂Ca_2.92Si₆O₁₆:0.08Eu³⁺ Phosphors

1.
Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
2.
College of Science and Technology, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
3.
School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China

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Received Date: March 14, 2019
Available Online: March 21, 2021

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Abstract

Abstract

A series of Na₂Ca_3-xSi₆O₁₆:xEu³⁺ was prepared with high temperature solid-state reaction and structurally characterized with X-ray powder diffraction. The results of X-ray powder diffraction showed that Eu³⁺-doping had no significant effect on the crystal structure of Na₂Ca₃Si₆O₁₆:Eu³⁺. Its optical properties were checked with the spectrofluorometer. The results showed that the Na₂Ca_3-xSi₆O₁₆:xEu³⁺ phosphor emitted red light with the strongest emission peak at 611 nm. The doping of Eu³⁺ did not change the peak shape and position of the emission spectra of Na₂Ca_3-xSi₆O₁₆:xEu³⁺phosphor. However, the doping content (mole fraction) of Eu³⁺ was related to the luminescence intensity. When the concentration of Eu³⁺ was 0.08, the Na₂Ca_3-xSi₆O₁₆:xEu³⁺ showed the strongest luminescence intensity. The concentration quenching was observed when Eu³⁺ concentration was over 0.08, and the concentration quenching mechanism was verified as multipole-multipole interaction. The results indicated that Na₂Ca_2.92Si₆O₁₆:0.08Eu³⁺ phosphor was a potential red light-emitting material for white LED.
- silicate,
- phosphor,
- high temperature solid-state reaction,
- luminescence properties,
- Eu³⁺

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References (23)

References

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Preparation and Luminescence Properties of Na2Ca2.92Si6O16:0.08Eu3+ Phosphors

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Preparation and Luminescence Properties of Na₂Ca_2.92Si₆O₁₆:0.08Eu³⁺ Phosphors