Cathodoluminescence properties of La₂MoO₆:Ln³⁺ (Ln: Eu, Dy, and Sm) phosphors

La₂MoO₆ orange-red phosphors with high efficiency incorporated with Eu, Dy and Sm have been synthesized through a gel combustion method. The influences of rare earth doping in synthesized samples were analysed by X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), and cathodoluminescence. Rare earth doped La₂MoO₆ samples show strong emission bands in the range of 400-750 nm and optimal doping concentration for all samples was 2 mol%. La₂MoO₆ host doped Eu ion showed intense and predominant emission peaks in 450-750 nm range. The electrical multipolar interaction contributed to the non-radiative energy transfer between Eu³⁺ ions in La₂MoO₆ host matrix. Sm doped La₂MoO₆ host exhibited orange-red CL emission peaks at 564, 608, 652 and 708 nm La₂MoO₆:Dy³⁺ phosphor displayed emissions at 484, 574 and 670 nm, respectively. The observed intense and sharp emission peaks indicate that La₂MoO₆ is promising host for lanthanides doped phosphor materials in the applications of optoelectronic.