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Journal of Materials Science

, Volume 52, Issue 18, pp 10927–10937 | Cite as

Novel single-phase full-color emitting Ba9Lu2Si6O24:Ce3+/Mn2+/Tb3+ phosphors for white LED applications

  • Sayed Ali Khan
  • Zhong Hao
  • Hu Wei-Wei
  • Lu-Yuan Hao
  • Xin Xu
  • Noor Zamin Khan
  • Simeon Agathopoulos
Energy materials

Abstract

Novel single-phase full-color-emitting Ba9Lu2Si6O24:Ce3+/Mn2+/Tb3+ phosphors were successfully synthesized by a high-temperature solid-state reaction method. Analysis of the X-ray diffractograms of the produced phosphors suggests that all the luminescence doping cations preferably occupy the Ba2+ sites in the host lattice. Li+ were used according to Ce3+ and Tb3+ concentration as a charge compensation regent. Under UV excitation, the single Ce3+-doped phosphor exhibits an intense blue emission band that peaks at 424 nm. In the co-doped phosphors, the experimental results suggest that an efficient energy transfer mechanism from Ce3+ to Tb3+ and Mn2+ results in the generation of a green emission in the Tb3+-doped phosphors and a red emission in the Mn2+-doped ones. The triple-doped phosphors, which contained specific concentrations of Ce3+, Mn2+, and Tb3+ ions, generated a tunable (in a wide range) white light which had good color rendering index values. Thermal behavior of the present phosphors was investigated which shows better characteristics. This result qualifies the produced powders as potential single-phase trichromatic white light-emitting phosphors.

Notes

Acknowledgements

This research was supported by the National Science Foundation of China (Nos. 51372238, 11435012), the CNPC-CAS strategic cooperation research program (2015A-4812), and the provincial teaching research project of Anhui province (2014jyxm010). Funding was provided by National Natural Science Foundation of China (CN) (Grant No. 11179037), and National Basic Research Program of China (Grant No. 973 Program, 2012CB922004).

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Sayed Ali Khan
    • 1
  • Zhong Hao
    • 1
  • Hu Wei-Wei
    • 1
  • Lu-Yuan Hao
    • 1
  • Xin Xu
    • 1
  • Noor Zamin Khan
    • 2
  • Simeon Agathopoulos
    • 3
  1. 1.Chinese Academy of Sciences Key Laboratory of Materials for Energy Conversion, Department of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefeiPeople’s Republic of China
  2. 2.Key Laboratory of Quantum Information, School of Physical SciencesUniversity of Science and Technology of ChinaHefeiPeople’s Republic of China
  3. 3.Materials Science and Engineering DepartmentUniversity of IoanninaIoanninaGreece

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