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1、AppliedSurfaceScience258(2012)6735–6738ContentslistsavailableatSciVerseScienceDirectAppliedSurfaceSciencejournalhomepage:www.elsevier.com/locate/apsuscEnhancedUVemissionofY-dopedZnOnanoparticlesJ.H.∗Zheng,J.L.Song,Q.Jiang,J.S.LianKeyLabofAutomobileMaterials,MinistryofEducation,Co
2、llegeofMaterialsScienceandEngineering,JilinUniversity,NanlingCampus,Changchun,130025,PRChinaarticleinfoabstractArticlehistory:Y-dopedZnO(Zn1−xYxO)nanoparticleswithdifferentYconcentrationsweresynthesizedbysol–gelReceived14October2011method.TheeffectsofYconcentrationontheopticalpro
3、pertiesoftheas-synthesizedZn1−xYxOnanopar-Receivedinrevisedform10February2012ticles2wereinvestigated.Photoluminescence(PL)measurementsrevealedthatdopingofYinZnOinducedMarch2012AcceptedanAvailableonline23March2012evidenceincreaseofUVemission.AtYconcentrationx=0.07,theUVemissionint
4、ensityreachedmax-imum,whichisabout9timeshigherthanthatofthecomparedpureZnOnanoparticles.Exceedingthisconcentration,Keywords:theformationofY2O3causesadecreaseintheUVemissionintensity.ThisenhancedUVSemi-conductorsemissionenablesZn1−xYxOsystempotentialapplicationsinsupersensitiveUVd
5、etectorsinimaging,photosensing,YOandintrachipopticalinterconnects.Zn1−xxnanoparticalsCrownCopyright©properties2012PublishedbyElsevierB.V.Allrightsreserved.Optical1.Introductionusedintheexperimentwereanalyticalgradepurity.Zincnitrate[Zn(NO3)2·6H2O]at0.1Mconcentrationanddifferentra
6、tiosofRare-earth(RE)dopedsemiconductorshavebeenthefocusofyttriumnitrateat0.1M[Y(NO3)2·3H2O]weredissolvedinto0.3Mnumerousinvestigationsbecauseoftheiruniqueopticalpropertiescitrateacid[C6H8O7·H2O]solutionwithstirringtoformsol.Then,and◦promisingapplicationsinoptoelectronicdevices[1–
7、5].Asonethemixturewaspolymerizedtoformgelat80Cfor12h.Theof◦themostimportantII–VIsemiconductorswithwidebandgap,swelledgelwaspyrolyzedat130Cfor5htoobtainthereticu-ZnOisanenvironmentallyfriendlyandchemicallystablemate-larprecursor.Theprecursorwasfurthergroundintopowdersinanrialandag
8、ate◦isasuitablehostmaterialforthedopingo
