Abstract
We synthesized the trivalent europium ions (Eu3+) doped BaGd2Ti4O13 (BGT) phosphors by a sol–gel method and investigated their luminescence properties by varying the dopant concentration. The BGT host material showed the pure orthorhombic phase after annealing at 1350°C for 40h. The photoluminescence (PL) emission of BGT:Eu3+ phosphors exhibited 5D0→7FJ=1,2,3,4 transitions, resulting in the reddish-orange color under 395nm of excitation wavelength. From the PL results, an optimized doping concentration of Eu3+ ions was found to be at 8mol%. The obtained cathodoluminescence spectra were similar to the PL spectra. The BGT:Eu3+ phosphors can help to emit a natural white light for near-ultraviolet and visible excitation wavelengths based white light-emitting diodes.
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