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Characteristics of Sr2SiO4:Eu2+ Green Phosphor Synthesized in the Presence of Nonthermal Plasma Discharge

This work investigated the application of nonthermal plasma to the synthesis of Eu2+-doped Sr2SiO4 phosphors. The effect of synthesis temperature and treatment time on the optical and structural properties of the phosphors was examined with a planar dielectric barrier discharge (DBD) reactor employed to create plasma. The X-ray diffraction patterns of the phosphors prepared by the present and conventional method were similar to each other. Despite relatively low synthesis temperature and short treatment time, the phosphors synthesized in the presence of nonthermal plasma were found to exhibit equivalent or higher photoluminescence intensities, compared to those synthesized by the conventional method.