Luminescence and energy transfer of Ce3+-Tb3+co doped yellow phosphorus slag glass-ceramics
Using yellow phosphorus slag as raw material,Ce3+-Tb3+co doped yellow phosphorus slag lumines-cent glass-ceramics were prepared by high-temperature melting method.The effects of different Tb3+doping a-mounts on the precipitated crystal phase,luminescence performance,and sample chromaticity of the glass-ce-ramics were investigated through differential thermal analysis(DTA),X-ray diffraction(XRD),steady-state/transient fluorescence(FLS),CIE chromaticity,etc.The results show that with the introduction of Ce3+and Tb3+,the main crystal phase of the microcrystalline glass is wollastonite.Under excitation at 310 nm,as the doping amount of Tb3+increases,the characteristic emission peak of Ce3+at 380 nm decreases,and the charac-teristic emission peak of Tb3+at 543 nm increases.This confirms the existence of energy transfer between Ce3+and Tb3+,with an energy transfer efficiency of 24.55％.In addition,by adjusting the Tb3+doping amount,the luminescence color of the microcrystalline glass can be adjusted from blue light to green light,thereby achieving controllable luminescence color.
yellow phosphorus slagluminousCe3+Tb3+energy transfer
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