Preparation of Long Afterglow PhotoluminescentMatedal SrAI2O4 ： Eu^2＋ , Dy^3 ＋ and ItsLuminescent Property-中国期刊网

摘要 Longlastingstrontiumaluminatephosphorsweresynthesizedbymeansofcoatedprecipitationintheexperiment.SrA12O4monoclinicphasewithlongafterglowwassynthesizedat1100℃withtheaidofH3BO3,andthesynthetictemperaturedecreasedabout100℃-150℃thaninsolidstatereaction.TheprocessofheattreatmentwasstudiedbyTG-DTA.ThephasecompositionsofpowderswereanalyzedbyXRD.ThemicrographsofthesampleswereinvestigatedbySEMandtheluminescentpropertieswereresearchedbyopticalspectrum.TheeffectsofH3BO3onthephasecompositionandmicrostructureofthecalcinedpowderswereinvestigated.TheresultsindicatedthatH3BO3acceleratedtheformationofSrAl2O4byconsumingtheintermediatephase.TheadditionofDy2O3stimulatedtheafterglowpropertyduetotheincreaseinthedepthofthetrapcenterinthematerials.

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Preparation of Long Afterglow PhotoluminescentMatedal SrAI2O4 ： Eu^2＋ , Dy^3 ＋ and ItsLuminescent Property

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Preparation of Long Afterglow PhotoluminescentMatedal SrAI2O4 ： Eu^2＋ , Dy^3 ＋ and ItsLuminescent Property

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