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- W3004865299 endingPage "117091" @default.
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- W3004865299 abstract "Abstract A series of novel Mn4+-activated double perovskite antimonate Sr2LaSbO6 (SLSO) far-red emitting phosphors were successfully synthesized by a high-temperature solid-state method. X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra, temperature-dependent photoluminescence spectra, CIE chromaticity coordinates, as well as internal quantum efficiency (IQE) were used to analyze these phosphor samples. Under 334 nm excitation, the SLSO:Mn4+ phosphors emit far red emission peaking around 694 nm due to the Mn4+: 2Eg→4A2g transition. The optimal doping concentration of Mn4+ was 0.8 mol%, moreover, the critical distance (Rc) was 40.89 A. The dipole-quadrupole interaction may be responsible for the concentration quenching mechanism of Mn4+ ions in the SLSO:Mn4+ phosphors. Furthermore, various Al3+ improved SLSO:0.008Mn4+ phosphors are investigated. When Al3+ is doped with 0.8%, the PL intensity increased by 2.92 times. In addition, the IQE of SLSO:0.008Mn4+ and SLSO:0.008Mn4+, 0.008Al3+ were found to be as high as 35.2% and 38.1%, respectively. Impressively, all chromaticity coordinates of samples located in far-red region. Therefore, these superior luminescence properties of SLSO:Mn4+ sample demonstrated its potential applications in plant cultivation and growth light-emitting diodes (LEDs)." @default.
- W3004865299 created "2020-02-14" @default.
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- W3004865299 date "2020-05-01" @default.
- W3004865299 modified "2023-10-15" @default.
- W3004865299 title "Sr2LaSbO6:Mn4+ far-red phosphor for plant cultivation: Synthesis, luminescence properties and emission enhancement by Al3+ ions" @default.
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- W3004865299 doi "https://doi.org/10.1016/j.jlumin.2020.117091" @default.
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