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1、MaterialsLetters63(2009)496–499ContentslistsavailableatScienceDirectMaterialsLettersjournalhomepage:www.elsevier.com/locate/matletNovelrose-likeZnOnanoflowerssynthesizedbychemicalvapordepositiona,1a,1aaaa,b,⁎NingZhang,RanYi,RongrongShi,GuanhuaGao,GenChen,XiaoheLiuaDepartmentofI
2、norganicMaterials,CentralSouthUniversity,Changsha,Hunan410083,PRChinabStateKeyLaboratoryofPowderMetallurgy,CentralSouthUniversity,Changsha,Hunan410083,PRChinaarticleinfoabstractArticlehistory:Rose-likezincoxidenanoflowersweresuccessfullysynthesizedonSiCsubstrateviaasimplechemic
3、alvaporReceived14September2008depositionmethod.Thecrystalstructure,chemicalcompositionandmorphologiesoffinalproductswereAccepted19November2008characterizedusingX-raypowderdiffraction,scanningelectronmicroscopyandtransmissionelectronAvailableonline3December2008microscopy.Theprod
4、uctsdepositedondifferentzonesofthesubstrateshowdifferentmorphologiessuchasmicro-plates,micro-palmerworms,andself-assemblednanosheets.Theroom-temperaturephotolumines-Keywords:cencespectrumoftherose-likenanoflowersrevealsastronggreenemissionat~491nmcorrespondingtoRose-likezincoxi
5、deNanoflowersdefect-relatedemission.Chemicalvapordeposition©2008ElsevierB.V.Allrightsreserved.1.Introductionmicro-palmerworms,andself-assemblednanosheetswerealsosynthe-sized.Photo-fluorescenceluminance(PL)spectrumoftherose-likeWurtzitestructuredzincoxide(ZnO)isanimportantII–VIna
6、noflowersshowsanexcellentluminescenceproperty.semiconductorwithdirectwidebandgapof3.37eVandalargeexcitonbindingenergyof60meVwhichhasattractedmuchattention2.Experimentalproceduresduetoitspromisingapplicationinoptoelectronicdevicesandsensors[1–2].Becausepropertiesofmaterialsdepen
7、dmuchontheirsizeandThematerialsinourstudiesweresynthesizedbychemicalvaporshape,itisveryimportanttotailorthesizeandshapeofnanos-deposition(CVD)process.Zincpowderwithpurityofanalyticalgradetructuresthroughnewsyntheticstrategies.Overthepastfewyears,wasputinthemiddleofaceramicboat
8、coveredbya10×10mmtremendouseffortshavebeenmadetocontrolthesha
