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The Sr3Al2O5Cl2:Eu2+, Pr3+ phosphor has been synthesized via high temperature solid state reaction. The X-ray powder diffraction confirms that the obtained samples are pure orthorhombic Sr3Al2O5Cl2 phases, with a space group of D24-P212121. Blue green emission is observed when the sample is doped with Pr3+ ions and an orange red emission with Eu2+ ions doping. Both of the samples show obvious afterglow...
Dysprosium doped strontium calcium magnesium di-silicate phosphor namely: SrCaMgSi 2 O 7 :Dy 3+ was prepared by the solid state reaction method. The crystal structure of the prepared phosphor was an akermanite type structure, which belongs to the tetragonal crystallography with space group P42 1 m. From field emission scanning electron microscopy (FESEM), agglomerations...
Eu 2+ , Dy 3+ co-doped Sr 2 MgSi 2 O 7 phosphors with deficient, stoichiometric or excess amounts of silicon are prepared by solid-state reaction. XRD and SEM results indicate that all the samples studied are found to be free from impurities and samples with SiO 2 excess possess better crystallinity and larger grain size. Photoluminescence reveals that...
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