纳米氧化锌的制备、表征及其光学性质分析-材料物理与化学专业论文.docx

下载文档 降价啦

42
1
约4.67万字
约 56页
2018-05-05 发布于上海
举报
版权申诉
保障服务

纳米氧化锌的制备、表征及其光学性质分析-材料物理与化学专业论文.docx

1、本文档共56页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

纳米氧化锌的制备、表征及其光学性质分析-材料物理与化学专业论文

StudyoFFabrication ,CharacterizationandOpticalPropertiesofZinc Oxide Nanostructure(Zhang Jian-weiMaterials Physics and Chemistry)Abstract：Asawide-bandgapsemiconductormaterialwith3.37eVbandgapenergy and60meVexcitonbondageenergy,thewurtzitestructuralzincoxide(ZnO)isideal materialappliedtofabricateultravioletphotoelectrondevice.Duetosmallsizeeffect andquantumconfinementeffect,nanostructuralZnOislargelysuperiortoitsbulk materialinthephysicspropertiesandpromisingtobeusedtoconstructmicro/nano ultravioletlaser,ultravioletemissiondiodeandhigh-sensitivebiology/chemistry sensor.TheindustrializationofnanostrualZnOis thefabricationofthenanomaterials. AlthoughsomeZnOnanostructureswithdifferentmorphologieshavebeenfabricated byvariousmethodsbynow,thefactorsinfluencingcrystalgrowthprocesscan’t efficientlycontrolled,andtheobtainednanostructuresstillexistlargeuncertaintyin morphologyandphysicsproperties.Inparticular,theunderstandingonthegrowth mechanismstillkeepsalowerlevel.Therefore,thefabricationofZnOnanostructures willstillbeanimportantpartofZnOresearchworkinalongtime.Thispaperreviews thenatureofZnO,fabricationmethods,testingmethods.SomeZnOnanostructures were successfully synthesized by chemical vapor deposition(CVD) and thermalevaporation techniques. The morphologies，crystalline qualities and opticalcharacteristicsofZnOnanostructureswereinvestigatedbyscanningelectron microscopy(SEM)，X-raydiffraction(XRD),EnergyDispersiveX-raySpectrometry(EDS)andPhotoluminescence(PL)analytictechnology,respectively.Thedetailsare asfollows:Inthispaper,asimplemethodforfabricatingZnOnano-disksisgiven,andZnO nano-disks with sizeaboutseveralmicronsandthicknessabout400nmobtainedonSi substrates(100)intheatmosphere,withZnpowerthermallyevaporateddirectlyin thecrucible.X-raydiffraction(XRD)revealsthegrownsamplesarehexagonalZnO crystal.Scanningelectronmicroscopy(SEM)imagesshowthatthemorphologyand sizeofsamplesis closelyrelatedtotheevaporationtemperatureofzinc.Thephotoluminescence(PL)spectrumatroomtemper