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A novel blue-emitting phosphor NaBa0.98Eu0.02PO4 was synthesized by conventional solid state reaction, and it exhibits efficient blue emission under near-ultraviolet (n-UV) excitation. The emission spectrum shows a single band centered at about 440 nm, which corresponds to the 4f65d1-4f7 transition of Eu2+. The excitation spectrum is a broad band in the wavelength range between 200 and 450 nm, which...
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