Abstract
CaMoO4:Eu3+ red phosphors were successfully synthesized by using a high-energy ball milling method. The X-ray diffraction patterns confirmed their tetragonal structure, and the field emission scanning electron microscopy images exhibited spherical particles. The photoluminescence properties (PL) of CaMoO4:Eu3+ phosphors were also studied as a function of the sintering temperature and the Eu3+ ion concentration. The PL excitation and the PL spectra demonstrated that CaMoO4 doped with 5 mol% of Eu3+ and sintered at 1200 °C showed an intense charge transfer band with a band maximum at around 303 nm and the strongest red emission at 618 nm (5D0 → 7F2) with Commision Internationale de I’Eclairage 1931 chromaticity coordinates (0.609, 0.343).
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