Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 29, Issue 3, Pages 1832-1836Publisher
SPRINGER
DOI: 10.1007/s10854-017-8092-y
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Funding
- Hebei province science and technology program [16211239]
- Xingtai Science and Technology Program [2016ZC190, 2016ZC012]
- Yong fund of Shanxi Natural Science Foundation of China [201701D221283]
- Hebei College Youth Top-notch Talent Program [BJ2017109]
- Xingtai City Youth Science and Technology Innovation Ability Promotion Plan Talent Project [2017ZZ029]
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A series of Sr3La(PO4)(3):Eu2+/Mn2+ phosphors were synthesized by a solid state reaction. The phase and the optical properties of the synthesized phosphors were investigated. The XRD results indicate that the doped Eu2+ and Mn2+ ions do not change the phase of Sr3La(PO4)(3). The peak wavelengths of Eu2+ single doped and Eu2+/Mn2+ codoped Sr3La(PO4)(3) phosphors shift to longer wavelength due to the larger crystal field splitting for Eu2+ and Mn2+. The increases of crystal field splitting for Eu2+ and Mn2+ are induced by the substitution of Sr2+ by Eu2+ and Mn2+ in Sr3La(PO4)(3) host. Due to energy transfer from Eu2+ to Mn2+ in Sr3La(PO4)(3):Eu2+/Mn2+ phosphors, tunable luminescence was obtained by changing the concentration of Mn2+. And the white light was emitted by Sr3La(PO4)(3):3.0 mol%Eu2+/4.0 mol%Mn2+ and Sr3La(PO4)(3):3.0 mol%Eu2+/5.0 mol%Mn2+ phosphors.
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