期刊
JOURNAL OF LUMINESCENCE
卷 210, 期 -, 页码 322-334出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2019.02.041
关键词
Luminescence; Phosphor
类别
资金
- National Natural Science Foundation of China [51672066]
- Funds for Distinguished Young Scientists of Hebei Province, China [A2018201101]
- Personnel Training Project of Hebei Province, China [A2016002013]
Series of Ce3+/Eu2+, Ce3+/Mn2+ and Ce3+/Eu2+/Mn2+ doped Ba3Y(PO4)(3) samples were synthesized by a high temperature solid state reaction method. Phase formation, energy transfer, luminescence properties and thermal quenching properties were investigated carefully. The energy transfer from Ce3+ to Eu2+ and Ce3+ to Mn2+ in Ba3Y(PO4)(3) were verified and discussed detailed. When Ce3+ and Eu2+ are co-doped, the energy transfer process from Ce3+ to Eu2+ is confirmed with electric dipole-dipole interaction. For Ce3+/Mn2+ co-doped phosphors, the energy transfer process from Ce3+ to Mn2+ is proved with electric dipole-dipole interaction. Besides, due to the existence of defects, the phosphors show excellent thermal stability. For Ce3+/Eu2+/Mn2+ tri-doped Ba3Y (PO4)(3), the energy transfer Ce3+ -> Eu2+ (Mn2+) and Eu2+ -> Mn2+ are confirmed. The energy transfer priority among Ce3+, Eu2+ and Mn2+ is analyzed in detail basing on the change of emission intensity. The obtained tri-doped phosphors contain red, green and blue component, thus they can emit warm white light basing on the energy transfer. The results show that they may be novel white-light-emitting phosphors for ultraviolet white light emitting diodes.
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