Synthesis and luminescence properties of Eu3+-activated Mg3(PO4)2 phosphors and substitution of phosphate with Molybdate, Tungstate and Sulphate

In the present work, trivalent europium (Eu 3+ ) ion activated Mg 3 (PO 4 ) 2 red phosphors have been synthesized through solid-state reaction method. X-ray diffraction (XRD) confirmed the successful formation of Mg 3 (PO 4 ) 2 Eu 3+ phosphors with monoclinic phase (space group P2 1 /c (14). The photoluminescence (PL) spectroscopy was used to record the excitation and emission spectrum of Eu 3+ activated Mg 3 (PO 4 ) 2 phosphor. The resulting samples displayed the typical emissions of Eu 3+ ions corresponding to the 5 D 0 → 7 F J transitions when excited at 395 nm. A 0.5 mol% Eu3 + ion doping concentration was found to be ideal. The best concentration of Eu 3+ ions for doping was discovered to be 0.5 mol%. The CIE coordinates of Eu 3+ activated Mg 3 (PO 4 ) 2 phosphor is calculated, which shows strong red emission. In addition, phosphate group replaced with molybdate, tungstate and sulfate group and found enhancement in emission intensity of prepared phosphors. The outcomes showed that the Eu 3+ -activated Mg 3 (PO 4 ) 2 phosphors are excellent red-emitting phosphors for use in white LEDs that are driven by near-ultraviolet light.