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Synthesis and luminescent properties of Y2O2SO4: Eu3+ sub-micron rods
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1.College of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology;2.Ganzhou Nonferrous Metallurgy Research Institute

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    Abstract:

    One-dimensional Y2O2SO4:Eu3+ sub-micron rods were synthesized by a facial molten-salt method with Na2SO4 and K2SO4 as the eutectic melt. The crystallography, morphology and luminescence properties of as-synthesized products were characterized by X-ray powder diffraction (XRD), scanning electronic microscope (SEM) and photoluminescence(PL) spectra.The influence of the sintering temperature, Eu3+ doping concentration on the crystallography, morphology, and luminescence properties of the samples were carefully investigated. The pure Y2O2SO4:Eu3+ can be prepared by calcining raw material mixture at 1100℃ for 2 h in air. The monoclinic Y2O2SO4:Eu3+ (10 mol%) sub-micron rods have a length of more than 10 μm and a width of 500~800 nm. The photoluminescence spectra of the Y2O2SO4:Eu3+ sub-micro rods confirmed the strongest red emission peak at 616 nm upon the excitation of 270 nm ultraviolet light, which corresponds to the 5D0→7F2 transition of Eu3+. Moreover, the quenching concentration mechanism of Y2O2SO4:Eu3+ samples with Eu3+ above 10 mol% was also discussed.

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[Yuxiang Wang, Shengwen Zhong, Xiaoqiang Wen, Qian Zhang. Synthesis and luminescent properties of Y2O2SO4: Eu3+ sub-micron rods[J]. Rare Metal Materials and Engineering,2021,50(4):1204~1209.]
DOI:10.12442/j. issn.1002-185X.20200284

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History
  • Received:April 29,2020
  • Revised:June 06,2020
  • Adopted:June 09,2020
  • Online: May 08,2021
  • Published: