Synthesis and Luminescent Properties of Gd2MoO6:Eu(3+).

A series of 6 mol% Eu(3+) doped Gd2MoO6 samples were prepared by using the sol-gel method. The X-ray diffraction patterns of the samples confirmed their monoclinic structure after they were annealed at 1300 °C, and a scanning electron microscope image revealed closely packed particles. The excitation spectra showed that the intensity of the excitation band decreased and the charge transfer band shifted from 370 to 350 nm with decreasing sintering temperature. The emission spectra are dominated by the hypersensitive forced electron dipolar transition (5)D0 --> (7)F2 at 612 nm. The as synthesized phosphor can be used as a red phosphor in white light emitting diodes.