【摘 要】
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The apatite compound Ca4La6(SiO4)4(PO4)2O2 (CLSPO) was explored as the host material for phosphors used in white light-emitting diodes (wLEDs). The crystal structure of the CLSPO
【机 构】
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SchoolofPhysicsandElectronicElectricalEngineering,HuaiyinNormalUniversity,Huaian223001,ChinaSchoolof
【出 处】
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ChineseOpticsLetters
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The apatite compound Ca4La6(SiO4)4(PO4)2O2 (CLSPO) was explored as the host material for phosphors used in white light-emitting diodes (wLEDs). The crystal structure of the CLSPO host prepared by the solid-state reaction method was investigated with Rietveld refinement. The rare earth ions (Eu3 / Tb3 /Ce3 , Tb3 /Tb3 , Mn2 ) activated CLSPO phosphors were synthesized, and their photoluminescence properties, quantum yields, as well as thermal stabilities, were studied. Under near-ultraviolet excitations, the Eu3 and Tb3 -doped CLSPO compounds exhibited red and green emissions with high luminescence efficiencies. Besides, tunable emissions from green to orange were obtained by introducing Mn2 ions into the Tb3 -doped CLSPO samples. The results showed that the phosphors studied may have potential applications for wLEDs.
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