Abstract
In this study, we have prepared several NaLaMgWO6:Dy3+, Tb3+ phosphors using a high-temperature solid-phase method. X-ray diffraction (XRD) and photoluminescence (PL) were used to analyze the physical phase and luminescent characteristics of these materials. Our results showed that in the NaLaMgWO6:xDy3+ phosphor, an ideal doping concentration of x = 8.0 mol% was discovered, which gave off a noticeably yellowish emission band. In NaLaMgWO6:yTb3+ phosphor, the optimal doping concentration of Tb3+ ions were y = 10 mol%. Dy3+ and Tb3+ singly doped phosphors showed significant yellow and green emission at 574 nm and 547 nm, corresponding to the 4F9/2 → 6H13/2 transitions of Dy3+ and the 5D4 → 7F5 transitions of Tb3+, respectively. In the NaLaMgWO6:Dy3+, Tb3+ phosphor, energy transfer was observed, and the mechanism behind it was thoroughly described. Furthermore, the color of the NaLaMgWO6 phosphor could be adjusted from yellowish to greenish by varying the Dy3+/Tb3+ ratio in concentration. These findings demonstrate that co-doped NaLaMgWO6 phosphors containing Dy3+and Tb3+ hold great potential for use in gadgets with fluorescent displays.
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Funding
This work was supported by the National Natural Science Foundation of China (Grant No. 52002293), the Startup Fund (Grant No. 22QD28) and Graduated Innovative Fund of Wuhan Institute of Technology (Grant No. CX2022229) for supporting this work.
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ZW: prepared samples, characterized and writing-original draft; SZ: writing-original draft; PH, and ZH: provided Advice and financial support; ZZ: supervision, writing—review & editing. All authors read and approved the final manuscript.
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Wang, Z., Zhou, S., Hu, P. et al. Energy transfer and optical properties of NaLaMgWO6:Dy3+, Tb3+ phosphors. J Mater Sci: Mater Electron 34, 2230 (2023). https://doi.org/10.1007/s10854-023-11574-5
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DOI: https://doi.org/10.1007/s10854-023-11574-5