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Ce3+/Eu2+ doped SrSc2O4 phosphors: synthesis, luminescence and energy transfer from Ce3+ to Eu2+
Chemical Physics Letters ( IF 2.8 ) Pub Date : 2017-11-02 , DOI: 10.1016/j.cplett.2017.10.062
Jitao Zhao , Xiaoyu Sun , Zhenqing Wang

Ce3+/Eu2+ doped SrSc2O4 phosphors were synthesized by a solid state reaction. The phase and luminescent properties of the synthesized phosphors were investigated. In SrSc2O4 host, Ce3+/Eu2+ substitute Sr2+ sites and form the solid solution. Ce3+/Eu2+ singly doped SrSc2O4 phosphors respectively show emission band locating in green and deep red regions and the emission peaks shift to longer wavelength with the increasing concentration due to the enhancements of crystal field. In Ce3+/Eu2+ codoped SrSc2O4 phosphors, the intensities of Ce3+ and Eu2+ emissions change with the changing Eu2+ concentrations due to energy transfer from Ce3+ to Eu2+.

中文翻译:

Ce 3+ / Eu 2+掺杂的SrSc 2 O 4荧光粉:Ce 3+到Eu 2+的合成,发光和能量转移

通过固相反应合成了Ce 3+ / Eu 2+掺杂的SrSc 2 O 4荧光粉。研究了合成磷光体的相和发光特性。在SrSc 2 O 4主体中,Ce 3+ / Eu 2+取代Sr 2+位点并形成固溶体。Ce 3+ / Eu 2+单一掺杂的SrSc 2 O 4荧光粉分别显示出发射带位于绿色和深红色区域,并且随着晶体场的增强,随着浓度的增加,发射峰移向更长的波长。在3+ / Eu 2+共掺杂SrSc 2 O 4荧光粉,由于从Ce 3+到Eu 2+的能量转移,Ce 3+和Eu 2+的发射强度随Eu 2+浓度的变化而变化。
更新日期:2017-11-05
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