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Synthesis and photoluminescence properties of Eu2+-doped olivine Mg2SiO4 blue-emitting phosphor for plant growth

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Abstract

Mg2SiO4:Eu2+ phosphors with olivine structure were prepared by the solid-state reaction under a reducing atmosphere, and their phase composition, crystal structure, microscopic morphology, and photoluminescence properties were investigated. It was suggested that Eu2+ ions occupied the lattice of Mg2+ ions, and a small amount of Eu2+ ions doping (0.05% ~ 0.2%) did not affect the crystal structure and morphology of the Mg2SiO4. The samples were crystallized into ellipsoidal particles with a size of 1–3 μm. The optimal doping concentration of Eu2+ ions in Mg2-xSiO4: xEu2+ phosphors is 0.1%. Upon the excitation of 275 nm ultraviolet light, the Mg2-xSiO4: xEu2+(x = 0.1%) sample exhibited a broad emission band with the maximum emission intensity at 453 nm, which is in the spectral absorption range of chlorophyll A and chlorophyll B, thus enabling the enhancement of the photosynthesis of the plant growth. The emission spectrum of the sample is decomposed into two subbands by the Gaussian method, which corresponds to the 5d-4f transitions of Eu2+ ions occupying the Mg1 and Mg2 lattice sites, respectively. In addition, the fluorescence decay behavior and thermal stability of the Mg2-xSiO4: xEu2+(x = 0.1%) sample were analyzed, and the sample showed good thermal stability.

These results indicate that the Mg2SiO4:Eu2+ phosphor has enormous potential in plant lighting.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

This work was jointly supported by the National Key Research and Development Project (No. 2018YFC1901503 and No. 2021YFC1910605), the Young Elite Scientist Sponsorship Program by CAST (YESS20200103), the National Natural Science Foundation of China (52104272) and the Fundamental Research Founds for the Central Universities (2652020020).

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  1. Yifei Liu and Yifeng Liu have contributed equally to this work.

Authors and Affiliations

  1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, People’s Republic of China

    Yifei Liu, Yifeng Liu, Ximing Huang, Meihua Wu, Can He, Qiyun Liu, Xin Min, Zhaohui Huang & Ruiyu Mi

  2. College of Jewelry and Art Design, Beijing Institute of Economic and Management, Beijing, 100102, China

    Hui Wang

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Contributions

The authors confirm contribution to the paper as follows: study conception and design and data collection were contributed by Y. Liu; analysis and interpretation of results were contributed by Y. Liu, Y. Liu, X. Huang, M. Wu, C. He; Testing and writing were contributed by Y. Liu, Y. Liu, and X. Huang; review and edit were contributed by R. Mi and H. Wang; draft manuscript preparation was contributed by Y. Liu, Y. Liu, X. Huang, M. Wu, C. He, Q. Liu, X. Min, Z. Huang, R. Mi, and H. Wang. All authors reviewed the results and approved the final version of the manuscript.

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Correspondence to Zhaohui Huang, Ruiyu Mi or Hui Wang.

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Liu, Y., Liu, Y., Huang, X. et al. Synthesis and photoluminescence properties of Eu2+-doped olivine Mg2SiO4 blue-emitting phosphor for plant growth. J Mater Sci: Mater Electron 34, 209 (2023). https://doi.org/10.1007/s10854-022-09664-x

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