title: Shape controlled synthesis and photoluminescence properties of Eu3+-doped REVO4 nanophosphors.
abstract: Eu3+-doped REVO4 nanphosphors were controllably synthesized by an EDTA-mediated hydrothermal method at 180 degrees C using RE(NO3)3 and Na3VO4 as precursors. The obtained products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FTIR), X-ray photoelectron spectra (XPS), and photoluminescence spectroscopy (PL). The XRD results showed that the products were pure tetragonal structure and no other impurity phase appeared. The PL studies demonstrated Eu3+ ions doping effectively enhanced luminescent properties of LaxRE(1-x)VO4 and YxRE(1-x)VO4 nanoparticles, but EU3+ ions doping did not enhance luminescent properties of CexRE(1-x)VO4 (x not equal 0) nanoparticles. The prepared phosphors showed well-defined red luminescence due to radiative transitions from 5D0 to 7F(J) (J = 1,2) levels of Eu3+ ions, respectively. Furthermore, we reported Eu3+-doped CexRE(1-x)VO4 (x not equal 0) phases represented a new class of optically inactive materials.
authors.affiliation: College of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China.
authors.forename: Fengzhen
authors.initials: F
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: Shao
authors.forename: Yibin
authors.initials: Y
authors.lastname: Yin
authors.forename: Limin
authors.initials: L
authors.lastname: Zhao
authors.forename: Zhengfeng
authors.initials: Z
authors.lastname: Jia
authors.forename: Qiaozhen
authors.initials: Q
authors.lastname: Sun
authors.forename: Zhuwei
authors.initials: Z
authors.lastname: Shao
authors.forename: Xuehua
authors.initials: X
authors.lastname: Liu
authors.forename: Xianhua
authors.initials: X
authors.lastname: Meng