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- W2012175004 abstract "Abstract A novel red phosphor based on Eu 3+ -activated SrCaSiO 4 was successfully synthesized by conventional solid state reaction method and the photoluminescence properties were investigated. X-ray diffraction (XRD) patterns indicated that SrCaSiO 4 : Eu 3+ phosphors belong to orthorhombic crystal system (space group= Pmnb ). The photoluminescence (PL) excitation spectrum showed broad-band absorption and the strongest excitation peak at 397 nm contributed to the 7 F 0 → 5 L 6 transition which matched well with the emission of a UV chip. The PL emission spectrum with the peaks at 577, 586, 592, 612, 650 and 685 nm, were probably attributed to the transitions from 5 D 0 to 7 F J ( J =0, 1, 2, 3, 4) of Eu 3+ ions. The quenching concentration of Eu 3+ was 10 mol.%, and the critical distance ( R c ) was about 1.2 nm. The fluorescence lifetime of Eu 3+ ions was found to be 3.2 ms. The results indicated that the SrCaSiO 4 : Eu 3+ might become an important red phosphor candidate for white-light-emitting diodes with near-UV LED chips." @default.
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- W2012175004 date "2011-05-01" @default.
- W2012175004 modified "2023-09-27" @default.
- W2012175004 title "Synthesis and luminescence properties of a novel red-emitting phosphor SrCaSiO4: Eu3+ for ultraviolet white light-emitting diodes" @default.
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- W2012175004 doi "https://doi.org/10.1016/s1002-0721(10)60474-7" @default.
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