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Rare Metals

, Volume 31, Issue 1, pp 35–38 | Cite as

Synthesis and luminescent properties of Ln3+ (Ln3+ = Eu3+, Dy3+) -doped Bi2ZnB2O7 phosphors

  • Qiuhong Zhang
  • Jing WangEmail author
  • Haiyong Ni
  • Lingli Wang
Article

Abstract

The new phosphors Bi2ZnB2O7: Ln3+ (Ln3+ = Eu3+, Dy3+) were synthesized by solid-state reaction technique. The obtained phosphors were investigated by means of X-ray powder diffraction (XRD), photoluminescence excitation and emission spectra with the aim of enhancing the fundamental knowledge about the luminescent properties of Eu3+ and Dy3+ ions in the Bi2ZnB2O7 host lattice. XRD analysis shows that all these compounds are of a single phase of Bi2ZnB2O7. The excitation and emission spectra of Bi2ZnB2O7: Ln3+ (Ln3+ = Eu3+, Dy3+) at room temperature show the typical 4f-4f transitions of Eu3+ and Dy3+, respectively. The hypersensitive transitions of 5D07F2 (Eu3+) and 4F9/26H13/2 (Dy3+) are relatively higher than those of the insensitive transitions in Bi2ZnB2O7. It is conceivable that the Bi2ZnB2O7 structure provides asymmetry sites for activators (Eu3+, Dy3+). The optimum concentrations of Eu3+ and Dy3+ ions in Bi2ZnB2O7 phosphors are both x = 0.05.

Keywords

phosphor Bi2ZnB2O7 luminescent properties concentration quenching 

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Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Qiuhong Zhang
    • 1
    • 2
  • Jing Wang
    • 2
    Email author
  • Haiyong Ni
    • 1
  • Lingli Wang
    • 1
  1. 1.Rare Earth Metallurgy Research DepartmentGuangzhou Research Institute of Non-Ferrous MetalsGuangzhouChina
  2. 2.Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical EngineeringSun Yat-sen UniversityGuangzhouChina

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