Journal of Inorganic Materials

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Advance in Red-Emitting Mn4+-activated Oxyfluoride Phosphors

JI Haipeng1, ZHANG Zongtao1, XU Jian2, TANABE Setsuhisa2, CHEN Deliang1, XIE Rongjun3   

  1. 1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
    2. Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan;
    3. School of Materials, Xiamen University, Xiamen 361000, China
  • Received:2019-10-31 Revised:2019-11-20 Online:2020-03-06 Published:2020-03-06
  • Contact: CHEN Deliang, professor. E-mail: dlchen@zzu.edu.cn; XIE Rongjun, professor. E-mail: rjxie@xmu.edu.cn
  • About author:JI Haipeng(1989-), male, lecturer. E-mail: jihp@zzu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (51902291); Postdoctoral Research Sponsorship in Henan Province (19030025); China Postdoctoral Science Foundation (2019M662524)

Abstract: The stable and reliable red phosphors with high-photon energy emission (620-650 nm) is critical for the fabrication of the phosphor-converted white light-emitting diode (WLED) with low correlated color temperature and high color rendering. The Mn4+-activated phosphor is an emerging kind of red-emitting phosphors for WLED. Herein, the energy level transition and photoluminescence characteristics of the Mn4+ ion were introduced; then, the preparation, crystal structure and luminescent properties of the as-far reported seven kinds of Mn4+-doped oxyfluoride red phosphors (such as Na2WO2F4:Mn4+) containing d0, d10 or s0 cations were reviewed. Currently, only in quite rare case of oxyfluoride, Mn4+ was found to exhibit strong R-line emission, with local coordination remaining as either [MnF6] or [MnO6]. The studies on the chemical stability and quantum efficiency of Mn4+-doped oxyfluoride phosphors are still insufficient. Finally, the future development of Mn4+-doped oxyfluoride phosphor was prospected.

Key words: white LED, phosphor, Mn4+, oxyfluoride, review

CLC Number: 

  • TQ174