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In this study, CaCl2, NH4Cl, and CaF2 were selected as the flux respectively to assist the preparation of the yellow emitting phosphor of CaSi2O2N2:Eu2+ by the solid-state reaction method. The influence of flux nature on the crystalline structure, morphology and photoluminescent behavior of the CaSi2O2N2:Eu2+ was extensively investigated. Results proved that adding flux can significantly enhance the...
We have synthesized yellow–orange CaO:Ce3+,Mn2+ phosphors by solid-state reaction. Photoluminescence properties and energy transfer mechanism from Ce3+ to Mn2+ ions have been investigated. The Ce3+ activated phosphors exhibit strong absorption in the range of 250–490nm and a yellow emission centered at 554nm. When Mn2+ ions were codoped, CaO:Ce3+,Mn2+ phosphors exhibit yellow emission band of Ce3+...
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