| Autor: |
Wang, Y. P., Yang, W. B., Ling, S., Xiong, F. B., Ma, E. |
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Mar2024, Vol. 35 Issue 8, p1-12, 12p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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