Journal of Inorganic Materials, Volume. 35, Issue 8, 847(2020)

Advance in Red-emitting Mn4+-activated Oxyfluoride Phosphors

Haipeng JI1... Zongtao ZHANG1, Jian XU2, Setsuhisa TANABE2, Deliang CHEN1,* and Rongjun XIE3,* |Show fewer author(s)
Author Affiliations
  • 1School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
  • 2Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
  • 3School of Materials, Xiamen University, Xiamen 361000, China
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    Figures & Tables(11)
    Energy levels arising from a d3 configuration for a free transition metal ion (C=4.5B) (a), Tanabe-Sugano diagram for the d3 electron configuration in an octahedral crystal field (C=4.5B) (b), orientation of the five d-orbitals with respect to the ligands of an octahedral complex (black dots showing the ligands around the transition metal ion) (c), and crystal field splitting for the d-orbitals in an octahedral crystal field (d)[16]
    Regular octahedron coordination and distorted octahedra coordination
    Unit cell of Na2WO2F4 (a), highly-distorted [WO2F4] octahedra (b), and emission spectrum of Na2WO2F4:Mn4+ (c) [21] with inset showing phosphor image under 460 nm light
    (a) Unit cell of Cs2WO2F4 which contains slightly- distorted [W(O,F)6] octahedra, with the bottom-right showing the local coordination of Mn4+ in K2MnF6; (b) Excitation and emission spectra of Cs2WO2F4:Mn4+ with inset showing the phosphor image under 365 nm light[23]
    PLE and DRS spectra of the Cs2NbOF5:Mn4+ phosphor (a) and temperature-dependent emission spectra of Cs2NbOF5:Mn4+ (b)[24] with the inset showing the intensity evolution of the integrated emission (Ie), the stokes emission (Is) and the anti-stokes emmission (Ia)
    The PLE (a) and PL (b) spectra of the BaNbOF5:Mn4+ phosphor at temperature of 78 and 298 K with insets showing the phosphor images under natural or UV light[26]
    Unit cell of Sr2ScO3F (a) and temperature-dependent emission spectra of Sr2ScO3F:Mn4+ (b)[27]Sr: yellow; Sc: blue; O: red; F: gray
    Excitation and emission spectra of BaTiOF4:Mn4+ at room temperature (a), emission spectra of BaTiOF4:Mn4+ at 77 K and 293 K (b), unit cell of BaTiOF4 (c), and distorted octahedron coordination of [Ti2OF4] (d)[28]Ba: yellow; Ti: blue; O: red; F: gray
    Comparison of the calculated Mn4+ energy levels in Mg28Ge7.55O32F15.04 for all possible Mn4+ positions in Ge/Mg sites with the measured spectrum[29]
    Unit cell of LiAl4O6F and coordination of Al3+/Li+ (a) and emission spectra of LiAl4O6F:Mn4+ at temperature of 298-523 K (b) [30]
    • Table 1. The reported Mn4+ activated oxyfluoride phosphors

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      Table 1. The reported Mn4+ activated oxyfluoride phosphors

      CationPhosphor hostPeaking wavelength/nm(R-line/ν6 intensity ratio)/%T50%/KRef.
      d0Na2WO2F4619125340[21-22]
      Cs2WO2F46325350[23]
      Cs2NbOF563210-[24-25]
      BaNbOF562910-[26]
      Sr2ScO3F690-320[27]
      BaTiOF46325-[28]
      d10Mg28Ge7.55O32F15.04657-700[29]
      s0LiAl4O6F6625-10-[30]
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    Haipeng JI, Zongtao ZHANG, Jian XU, Setsuhisa TANABE, Deliang CHEN, Rongjun XIE. Advance in Red-emitting Mn4+-activated Oxyfluoride Phosphors [J]. Journal of Inorganic Materials, 2020, 35(8): 847

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    Paper Information

    Category: REVIEW

    Received: Oct. 31, 2019

    Accepted: --

    Published Online: Mar. 15, 2021

    The Author Email: CHEN Deliang (dlchen@zzu.edu.cn), XIE Rongjun (rjxie@xmu.edu.cn)

    DOI:10.15541/jim20190554

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