期刊
CERAMICS INTERNATIONAL
卷 47, 期 5, 页码 6010-6022出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.10.176
关键词
Optical materials and properties; Mn4+; Luminescence
资金
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [19KJB510054]
- Six Top Talents of Jiangsu Province [XCL-052]
- Qing Lan Project of Jiangsu Province
The synthesis and photoluminescent properties of Mn4+ ion-activated A(2M)gWO6 (A = Ba, Sr, Ca) phosphors were deeply investigated, determining the optimum doping concentration and thermal stability. Comparative studies showed that these synthesized phosphors are potentially ideal for white light emitting diodes (W-LEDs).
A series of Mn4+ ions activated A(2M)gWO6 (A = Ba, Sr, Ca) phosphors, showing bright red emission peaks appeared around 700 nm under the excitation of 355 nm, were synthesized by the solid-state reaction. The crystal structures and photo-luminescent (PL) properties of these synthesized phosphors were deeply investigated with the aids of X-ray diffraction measurement (XRD), and the temperature dependent PL/decay curves in detail. The optimum doping concentration of Mn4+ ions in A(2)MgWO(6) (A = Ba, Sr, Ca) lattices were studied through the relationship between the Mn4+ ions doping concentrations and the luminescent intensities. The thermal stability of the synthesized red-emitting phosphors was checked based on the temperature-dependent PL intensities ranging from 7 to 510 K. Comparative studies of the luminescent properties for Mn4+ ions in isostructural A(2)MgWO(6) (A = Ba, Sr, Ca) lattice with double perovskite structure were studied. The results indicate that the synthesized red-emitting phosphors are the ideal choice for white light emitting diodes (W-LEDs).
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