Highly efficient and thermally stable CaYMgSbO6:Mn4+ double perovskite red phosphor for indoor plant growth

  • Lei Shi
  • Ya-jie Han
  • Zhi-xin Ji
  • Zhi-wei ZhangEmail author


A novel Mn4+ activated CaYMgSbO6 (CYMS) far-red phosphor was synthesized by high temperature solid state reaction. The sample was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), luminescence spectra, ultraviolet–visible spectra, emission-temperature relationship and internal quantum efficiency (IQE). It is found that CYMS:Mn4+ phosphor has a strong broad excitation band in the range of 200–550 nm. The sample can be excited by ultraviolet and blue light. There is a wide emission band centered at 688 nm between 600 and 760 nm. The optimum doping concentration of Mn4+ is approximately 0.2 mol%. In addition, all the Commission Internationale de L’Eclairage (CIE) chromaticity coordinates of CYMS:0.002Mn4+ located in the far-red region. The concentration quenching mechanism is the dipole-quadrupole interaction of Mn4+ activator. The sample has excellent thermal stability (I423K/I298K = 53.2%). Importantly, the CYMS:0.002 Mn4+ phosphor has an IQE up to 51.5%. Finally, a 365 nm ultraviolet light emitting diode chip combined with CYMS:0.002 Mn4+ phosphor was used to fabricate the LED device. All the results indicated that CYMS:Mn4+ phosphors have potential applications in indoor plant cultivation.



This work was supported by the Doctoral Research Foundation of Hebei Normal University of Science and Technology (Grant No. 2016YB003), Hebei provincial science and Technology Department Project (Grant No. 17227302D). We also gratefully acknowledge the instrumental analysis center of Hebei Normal University of Science and Technology.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Lei Shi
    • 1
  • Ya-jie Han
    • 1
  • Zhi-xin Ji
    • 2
  • Zhi-wei Zhang
    • 1
    Email author
  1. 1.College of Chemical EngineeringHebei Normal University of Science and TechnologyQinhuangdaoChina
  2. 2.College of Agronomy and BiotechnologyHebei Normal University of Science and TechnologyQinhuangdaoChina

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