Rapid synthesis of BaMoO4:Eu3+ red phosphors using microwave irradiation

Abstract

AbstractThis study synthesized BaMoO4:Eu3+ red phosphors using the microwave method. In addition, the phase composition, morphology, and luminescence properties of the red phosphors were characterized using X‐ray diffraction, field‐scanning electron microscopy, and photoluminescence spectroscopy. The results revealed that doping red phosphors with different concentrations of Eu3+ does not change the crystal structure of the matrix material. The BaMoO4:Eu3+ phosphors exhibited micron‐scale irregular polyhedra, which could be excited by ultraviolet light with a wavelength of 395 nm to induce red‐light emission. The optimal dosage of Eu3+ was 0.08, and the chromaticity coordinates of BaMoO4:0.08Eu3+ phosphors were (0.5869, 0.3099). White light‐emitting diode (w‐LED) devices manufactured by using a combination of BaMoO4:0.08Eu3+ phosphor and commercially available phosphors exhibited good white‐light emission under the excitation of an ultraviolet chip. The BaMoO4:0.08Eu3+ red phosphors that rapidly synthesized under the microwave field are expected to be used in w‐LED devices.