Microwave-promoted pure host phase for red emission CaS：Eu2＋ phosphor from single CaSO4 precursor and the photoluminescence property-中国期刊网

摘要 Wereportanovelapproachtoobtainingaclassicalblue-greenexcitableCaS:Eu2+phosphorwithdesiredredemissionbymicrowave(MW)firingprocedureintheabsenceofaddingelementalsulphur.ThedisturbingeffectofMWelectromagneticfieldondecompositionofCaSO4intoCaSactivatedbyeuropiumisdistinctlyobservedtogivepurehostphasewithoutaddinganyelementalsulphurandcarbon.ThehostphaseevolutionisobservedtobehighlydependentonthevariationofappliedMWpowerfromX-raydiffraction(XRD)patternsandthecorrespondingphotoluminescence(PL),andamaximumPLintensityat1100WofMWpowerisacquiredfortheobtainedpurerhostphase.Thenon-thermalandnon-equilibriumeffectsbyMWarerevealedtocorrelatewiththeinteractionbetweenpolarstructureofthehostandappliedelectromagneticfield.Theresultsdemonstrateanoptionalproceduretopreparethisred-emittingphosphorinaneffective,environment-friendlyandscalableapproachforphosphorproductionintheapplicationofbio-illuminationforplantcultivationandartificialphotosynthesis.

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Microwave-promoted pure host phase for red emission CaS：Eu2＋ phosphor from single CaSO4 precursor and the photoluminescence property

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Microwave-promoted pure host phase for red emission CaS：Eu2＋ phosphor from single CaSO4 precursor and the photoluminescence property

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