水热法制备纳米zns

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1、HydrothermalPreparationofZnSNanowiresAbstract:NanowiresofZnSweresynthesisedbyusingasurfactantassistedhydrothermalapproach.Thesynthesisisbasedondecorupositionofdipyridylzincthiocyanatewithcetyltriruethylaruruoniumbromide(CTAB)asasurfactant.ThenanostructurewascharacterizedbySEM,XRDandEDX.

2、HR-TEM.Theexperiruentalresultsindicatethatthereactiontirueandconcentrationofsurfactantplaykeyrolesindeterruiningthefinalruorphologiesofnano-ZnS.AndCTABactsasamolecule-directingteruplateforthegrowthofnanowires.摘要：以十六烷基三甲基溴化铵(CTAB)为表面活性剂，利用水热法通过二吡啶硫氰酸锌分解制备了ZnS纳米线，并用SEM、XRD.EDX和HR-TEM等方法对其

3、纳米结构进行了表征。实验结果表明，反应时间和表面活性剂浓度是决定纳米ZnS最终形貌的关键凶素．CTAB起到了纳米线生长的分子一诱导模板作用。Nanostructurehasarosetreruendousinterestaruongtheresearchersworkinginallfieldsincludingphysicstobioscience.Frombasicsciencetotechnologistsfortheirimprovedphysicalandchemicalpropertiesandapplicationssuperiortotheirbulk

4、counterparts.Sincethefirstdiscoveryofcarbonnanotubes.one-dimensional(ID)semiconductormaterialssuchasnanorods.nanowires.nanotubesandnanobelts/nanoribbonshaveattractedextensiveinterestbecauseoftheirfundamentalphysical.chemical,optical,electricalandmagneticproperties,andtheirpotentialappli

5、cationsinnano-scaledevices.ItiswellknownthatIDnanostructurecanplayanimportantrolebothasinterconnectandfunctionalunitsinfabricatingelectronic,optoelectronic.electrocheruicalandelectroruechanicaldeviceswithnanoscaledimension.1Dnanostructurehavebeensynthesizedthroughavarietyofsynthesistech

6、niquesuchastemplate-directedsynthesisc5l,Vaporsolidgrowth,vapor-liquid-solid(VLS)growthm.solu-tion-liquid-solid(SLS)growthcs]etc.Avarietyofmetalc9Lsemiconductingoxidesuo]indifferentIDnanoformshavebeenreportedsofar.Outofthesematerials.zincsulfide.aII-VIsemiconductor.isoneof'themoststudie

7、dmaterialsforitswiderangeoftechnologicallyimportantproperties.ZincSulfide(ZnS)hasawidebandgapof3.72eVforcubicphasec"and3.77eVfortheatrooruteruperature.Itisalight-eruittingdiodes,injectionlasers.cathoderaytubes,flatpaneldisplaysandIRwindows.ZnSisalsoimportantforphotoluminescence