Energy transfer and luminescence properties of a green-to-red color tunable phosphor Sr8MgY(PO4)7:Tb3+,Eu3+

  • Wenzhi SunEmail author
  • Huaiyong Li
  • Baohui Li
  • Juan Du
  • Jigong Hao
  • Chengchao Hu
  • Yangbo Wang
  • Xiujie Yi
  • Ran Pang
  • Chengyu LiEmail author


SMYPO:Tb3+, SMYPO:Eu3+ and new single-phased color tunable SMTPO:Eu3+ phosphors were prepared via solid-state method. The phase purity was detected by powder X-ray diffraction. The luminescence properties, decay curves and thermal stability were measured and studied in detail. Excited by the UV light, SMYPO:Tb3+ and SMYPO:Eu3+ display bright green and red emission, respectively; SMYPO:Tb3+,Eu3+ exhibits not only red emission of Eu3+ but also green emission of Tb3+, ascribing to 5D07FJ transitions of Eu3+ and 5D37FJ and 5D47FJ transitions of Tb3+, respectively. The emission color of SMTPO:Eu3+ will be changed from green via yellow and orange to red, by modulating the ratio of Tb3+ to Eu3+. It is proved that Tb3+ can efficiently sensitize the photoluminescence of Eu3+ under UV excitation, owing to the effective energy transfer. The energy transfer efficiency (ηTb → Eu) strongly depends on the Eu3+ concentration, and the maximum ηTb → Eu is up to about 54.2%. Meanwhile, the thermal stability of SMTPO:Eu3+ is excellent.



The research is financially supported by the National Natural Science Foundation of China (Grant Nos. 51802137, 51701091), and the Research Fund for the Doctoral Program of Liaocheng University (Grant No. 318051732).


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Copyright information

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

Authors and Affiliations

  • Wenzhi Sun
    • 1
    Email author
  • Huaiyong Li
    • 1
  • Baohui Li
    • 1
  • Juan Du
    • 1
  • Jigong Hao
    • 1
  • Chengchao Hu
    • 1
  • Yangbo Wang
    • 1
  • Xiujie Yi
    • 1
  • Ran Pang
    • 2
  • Chengyu Li
    • 2
    Email author
  1. 1.School of Materials Science and EngineeringLiaocheng UniversityLiaochengPeople’s Republic of China
  2. 2.State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunPeople’s Republic of China

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