• Spectroscopy and Spectral Analysis
  • Vol. 31, Issue 8, 2063 (2011)
Taximaiti Yusufu*, Ajimu Abulai, SU Zong-cai, and Aierken Sidike
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  • [in Chinese]
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    DOI: 10.3964/j.issn.1000-0593(2011)08-2063-04 Cite this Article
    Taximaiti Yusufu, Ajimu Abulai, SU Zong-cai, Aierken Sidike. Luminescence Properties of Thenardite Activated with Dy3+ under Vacuum Ultraviolet Excitation[J]. Spectroscopy and Spectral Analysis, 2011, 31(8): 2063 Copy Citation Text show less

    Abstract

    Na2SO4∶Dy3+ phosphors were prepared by heating pure natural thenardite(Na2SO4) with DyF3 at 900 ℃ for 25 min in air. studied the Luminescence properties of Na2SO4∶Dy3+ were studied by synchrotron radiation. Their photoluminescence (PL) spectra were also investigated under vacuum ultraviolet-ultraviolet (VUV-UV) at room temperature.According to the emission spectra, the yellow-blue ratio (Y/B) is different under different concentrations of Dy3+ and the position of excitation.And the excitation spectrum is consisted of strong bands assigned to the 4f9→4f8 5d transition at 172 nm, the O2-- Tm3+charge transfer band at 165 nm and weak bands assigned to host absorption(138, 245 nm) and the 6H15/2→4D7/2,6H15/2→6P3/2,  and 6H15/2→6P7/2 transition at 299, 325 and 351 nm respectively.
    Taximaiti Yusufu, Ajimu Abulai, SU Zong-cai, Aierken Sidike. Luminescence Properties of Thenardite Activated with Dy3+ under Vacuum Ultraviolet Excitation[J]. Spectroscopy and Spectral Analysis, 2011, 31(8): 2063
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