- 1、本文档共33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)。
Thecharacterizationofgrephene班级:09级材料三班组员:朱杉(编辑校稿)张强(文章撰写)高厚仁(资料收集)陈宏翔(文章撰写)开赛尔江(其他)石墨烯的表征方法
1IntroductionGrapheneatwo-dimensional,single-layersheetofsp2-hybridizedcarbonatoms,hasattractedtremendousattentionandresearchinterest,owingtoitsexceptionalphysicalproperties.0102
1.1SynthesisofgraphenechanicalexfoliationChemicalvapordeposition(CVD)ChemicallyderivedgrapheneOthersynthesisapproaches
1.2PropertiesandcharacterizationGoodthermalstabilityExcellentmechanicalstrengthHighelectronicconductivity
2MorphologyanalysisAtomForceMicroscope(AFM)1ScanningTunnelMicroscope(STM)2ScanningElectronMicroscope(SEM)3OpticalMicroscope(OM)4
PreparationObservationPerformancetest2.1AFM
Fig1.SEMimagesofearlyattemptsatmechanicalexfoliationusinggraphitepillars
Fig2.3DmodelofAFMtip/specimencontact
logoFig3.Mechanicalexfoliationproducedtheveryfirstsinglelayergrapheneflakes.
Fig4.(a)8μmx8μmAFMtopography(b)Pseudo-3Drepresentation
Fig5.SchematicofAFMtip/specimencontactundernegativeandpositiveappliedloads.Fig6.
Fig7.AFMimageofthegraphenespecimen,2Dprofilesatthesixdifferentregionsandthethicknessatthesixsitesindicatedontheimage
Fig8.AFMimagesofgraphenespecimen(a)beforeand(b)afterweartest.Fig9.(a)AFMimageofweartracksand(b)thecross-sectionsofweartracks.
2MorphologyanalysisAtomForceMicroscope(AFM)ScanningTunnelMicroscope(STM)ScanningElectronMicroscope(SEM)OpticalMicroscope(OM)
2.2STMFig10.(a)STMimageofgraphiteshowingonlythethreecarbonsthateclipseaneighborinthesheetdirectlybelow.(b)Incontrast,allsixcarbonsareequivalentandthusvisibleinmechanicallyexfoliatedsingle-layergraphene.
2MorphologyanalysisAtomForceMicroscope(AFM)1ScanningTunnelMicroscope(STM)2ScanningElectronMicroscope(SEM)3OpticalMicroscope(OM)4
2.3SEMFig11.G
文档评论(0)