Journal of Inorganic Materials ›› 2017, Vol. 32 ›› Issue (8): 877-883.DOI: 10.15541/jim20160597

• Orginal Article • Previous Articles     Next Articles

Anomalous Emission Performance of Eu3+-activated BiOCl Layered Phosphors Induced by Doping Zn2+

CHEN Fan-Li1, LI Yong-Jin2, ZHANG Xiang-Zhou1, XU Zhu-Yuan1, HU Rui1, QIU Jian-Bei1, YANG Zheng-Wen1, SONG Zhi-Guo1   

  1. (1. School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. Yunnan Technology and Business University, Kunming 651700, China)
  • Received:2016-11-01 Revised:2016-12-15 Online:2017-08-15 Published:2017-07-19
  • About author:CHEN Fan-Li. E-mail: 1392053464@qq.com
  • Supported by:
    National Natural Science Foundation of China (61465006);Reserve Talents Project of Yunnan Province (2015HB013)

Abstract:

Eu3+-activated BiOCl layered phosphors induced by doping Zn2+ were prepared by traditional solid reaction method, and the effect of Zn2+ ion dopants (0-20mol%) on the photoluminescence properties were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Fourier transform infrared absorption (FT-IR), excitation and emission spectra, and luminescence decay curves measurement. It is found that increase of concentration of Zn2+ ion dopants almost has no influence on the structure of BiOCl crystals but decreases the emission intensity of Eu3+ ion at first and then increases it, accompanying with continually enhancing luminescence lifetime of Eu3+ ions. The comparative experiments suggest that this results are involved in special layered structure of BiOCl semiconductor. Zn2+ ions would be incorporated into interlayer space of the BiOCl layered crystals when the concentration of Zn2+ ions ≤10%. Then, Zn2+ ions tend to incorporate into crystal lattices by substituting Bi3+ ions. Different doping mechanism of Zn2+ may change Eu3+ lifetime and modify energy transfer efficiency from the host, leading to above emission behavior of Eu3+ ion dopants. The result is helpful to improve performance of novel red Eu3+ doped BiOCl phosphor and to understand emission property of rare earth ion in layered phosphors.

Key words: BiOCl, Eu3+ ion, Zn2+ doped, layered semiconductor

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