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Synthesis and luminescence properties of Eu3+ co-doped NaBi(MoO4)2:Dy3+ phosphors for white light-emitting diodes

  • Wenjie Li
  • Wentao ZhangEmail author
  • Wanwan Li
  • Yu Gan
  • Peicong Zhang
Article
  • 31 Downloads

Abstract

Dy3+-doped and Dy3+/Eu3+ co-doped NaBi(MoO4)2 phosphors were successfully synthesized using a high temperature solid-state method. The crystal structure and phase purity of these as-prepared samples were characterized by X-ray diffraction. Under 453 nm excitation, NaBi(MoO4)2:Dy3+ phosphors exhibited the characteristic weak blue emission peak at 488 nm and strong yellow emission peak at 577 nm, which originate from the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ions, respectively. Therefore, a white light could be composed of a blue light from chip and yellow emission of NaBi(MoO4)2:Dy3+ phosphor. Additionally, color-tunable emissions were observed in the spectra of NaBi(MoO4)2:Dy3+, Eu3+ phosphors due to efficient energy transfer from Dy3+ to Eu3+ ions. By varying co-doping concentrations of Dy3+ and Eu3+ ions, the emission color of NaBi(MoO4)2:Dy3+, Eu3+ could be varied for high quality blue-excited white light-emitting diodes.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Wenjie Li
    • 1
  • Wentao Zhang
    • 1
    Email author
  • Wanwan Li
    • 1
  • Yu Gan
    • 1
  • Peicong Zhang
    • 1
  1. 1.College of Materials and Chemistry & Chemical EngineeringChengdu University of TechnologyChengduChina

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