Abstract
To achieving high-quality white light emitting diodes (LED), a series of novel red-emitting phosphors NaMg3In1-zYz(Mo1-yWyO4-xFx)5: 0.10Eu3+ (x = 0–0.20, y = 0–0.05, z = 0–0.20) have been obtained via solid-state reaction process. The luminescent properties of NaMg3In(MoO4)5: 0.10Eu3+, and the effect of partial substituting Y3+/W6+/F− ions on the structure and properties of this phosphor were investigated on detailed. The crystal structure of these phosphors was characterized by X-ray diffraction, scanning electron microcopy, energy-dispersive spectra, and Raman spectra. The luminescence properties and decay properties of those samples were also studied. The luminescent intensity and internal quantum efficiency of NaMg3In(MoO4)5: 0.10Eu3+ phosphor partially substituted by Y3+/W6+/F− ions was 1.59 and 2.76 times than that of the sample without partial substitution, due to the distort of local crystal field surrounding the Eu3+ ions. By employed the as-synthesized NaMg3In0.85Y0.05 (Mo0.96W0.04O3.84F0.16)5: 0.10Eu3+ phosphor as red component, a high-performance white LED with a low 4543 K correlated color temperature and high color-rendering index Ra = 90.0 has been fabricated with a 395 nm near-UV chip, commercial green and blue phosphors. These results implied that NaMg3In(MoO4)5: 0.10Eu3+ phosphor partially substituted by Y3+/W6+/F− ions could be used as a potential red-emitting candidate for white light-emitting-diodes.
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The datasets generated during and analyzed during the current study are available from the corresponding author on reasonable request.
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Funding
This work has been supported by the Fujian Provincial Natural Science Foundation of China (Grant No. 2020J01297), and the Science Technology innovation project of **amen (Grant No. 3502Z20193056).
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Material preparation, data collection and analysis were performed by YPW, SL and WBY. The first draft of the manuscript was written by FBX. Scientific discussions were by performed FBX and EM. All authors read and approved the final manuscript. The authors declare that no fund, grant or other support were received during the preparation of this manuscript.
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Wang, Y.P., Yang, W.B., Ling, S. et al. Effect of substituting Y3+/W6+/F− ions on the luminescent properties of novel red-emitting NaMg3In(MoO4)5: Eu3+ phosphors for white LED. J Mater Sci: Mater Electron 35, 557 (2024). https://doi.org/10.1007/s10854-024-12304-1
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DOI: https://doi.org/10.1007/s10854-024-12304-1