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•Apatite-silicate phosphors doped with Eu, which shows two or three peaks and are beneficial for potential use as white-light-emitting diodes.•Eu 2+ occupies three sites of the lattice because of the cations have three different positions in apatite structure.•Two peaks at 415nm and 507nm observed for Ba 9.25 (PO 4 ) 4 (SiO 4 ) 2 :0.75 Eu 2+ ...
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