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- W2053188575 abstract "K4BaSi3O9:Eu3+ polycrystals were synthesized by solid state method. X-ray powder diffraction measurements confirmed structure of the samples. The excitation and the emission spectra of orthorhombic K4BaSi3O9 doped with Eu3+ were investigated. The excitation spectrum exhibits a broad band with maximum at 220 nm corresponding to the charge transfer (CT) transition between O2− and Eu3+ ions and smaller 4f–4f transitions. The emission of investigated phosphor was excited at 395 nm and has quantum efficiency (QE) equal 27%. The emission maximum at 616.5 nm was assigned to the 5D0 → 7F2 transition of Eu3+ ions. The luminescence decay profiles as well as the thermal quenching were measured and analyzed. K4BaSi3O9:Eu3+has high temperature quenching of the emission T0.5 = 335 °C." @default.
- W2053188575 created "2016-06-24" @default.
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- W2053188575 date "2014-11-01" @default.
- W2053188575 modified "2023-10-14" @default.
- W2053188575 title "Synthesis and spectroscopic characterization of the K4BaSi3O9:Eu3+" @default.
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- W2053188575 doi "https://doi.org/10.1016/j.optmat.2014.06.036" @default.
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