Zhang_et_al-2012-Journal_of_the_American_Ceramic_Society

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1、J.Am.Ceram.Soc.,95[1]243–249(2012)DOI:10.1111/j.1551-2916.2011.04763.x©2011TheAmericanCeramicSocietyJournalVacuumUltraviolet–Ultraviolet,X-Ray,andNear-Infrared3+ExcitedLuminescencePropertiesofSrR2O4:RE(R=YandGd;RE=Tb,Eu,Yb,Tm,Er,andHo)‡‡,†‡§JiaZhang,YuhuaWang,LinnaGuo

2、,andYanHuang‡DepartmentofMaterialScience,SchoolofPhysicalScienceandTechnology,LanzhouUniversity,Lanzhou,730000,China§LaboratoryofBeijingSynchrotronRadiation,InstituteofHighEnergyPhysics,ChineseAcademyofSciences,Beijing,100049,China3+3+3+3+3+3+Rareearthions(Tb,Eu,Yb,Tm

3、,Er,andHo)-increasingneedsforadvancedimagedevices,forwhichthedopedSrR2O4(R=YandGd)werepreparedbysolid-state3DPDPsoperatesusingtheimagesthatareseparatedtothe8,9reaction,andtheiropticalpropertieswereinvestigated.Uponleftandrighteyesbydividingthescanningperiod.This3+VUV–

4、UVexcitation,theSrY1.99O4:0.01Tbexhibitsatypi-3Ddevicerequireshigherbrightnessandshorterresponse3+calgreenemissionofTbwiththedominantpeaklocatedattimethantheconventionalPDPs.Hence,itisurgentto3+543nm.IntheexcitationspectrumofSrY1.99O4:0.01Tbexploitnewluminescentmateri

5、alswithbroadandstrong3+monitoredat543nm,thef–dtransitionofTbisobservedabsorptioninVUVregiontomeettherequirementsforprac-andidentifiedtolieinthemuchlowerenergyregioncomparedticalapplication.X-ray,asahigh-energysource,canalso3+withmanyotherTb-dopedphosphors,whichcanbeexc

6、iterareearth(RE)ionstoemitultraviolet(UV)orvisible10interpretedbyastrongcrystalfieldinSrY2O4structure.Upon(Vis)light.AndthescintillationmaterialsexcitedbyX-ray3+X-rayexcitation,SrY1.99O4:0.01Eudisplaysanintenseredhavebeenwidelyusedinthefieldsofhigh-energyphysics,11fluore

7、scence,whosestrongestemissionpeakissituatedatmedicalimaging,safetyinspectionandsoon.Forinstance,573+611nm,ascribedtoD0–F2transitionofEu.UnderinmedicalX-rayimaging,thephosphorabsorbstheincident980nmlaserexcitation,blue,green,andyellowemissionshaveradiationandconvertsit

8、intoashoweroflightphotons,in3+3+3+3+3+3+beenachievedinYb–Tm,Yb–Er,andYb–HoUVorVisregion,whichareratherefficientlyabsorbedby12,