Eu3+ doped Gd2WO6 and Gd2(WO4)3 nanophosphors with different concentrations were prepared via a co-precipitation method.The structure and morphology of the nanocrystal samples were characterized by using X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM),respectively.The emission spectra and excitation spectra of samples were measured.J-O parameters and quantum efficiencies of Eu3+ 5D0 energy level were calculated,and the concentration quenching of Eu3+ luminescence in different matrixes were studied.The results indicated that effective Eu3+∶5D0-7F2 red luminescence could be achieved while excited by 395 nm near-UV light and 465 nm blue light in Gd2WO6 host,which was similar to the familiar Gd2(WO4)3∶Eu.Therefore,the Gd2WO6∶Eu red phosphors might have a potential application for white LED.
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