机械研磨法制备石墨烯调研.ppt

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1、机械研磨法调研张阳2011.09.22文献：“Patterningofhighlyorientedpyrolyticgraphitebyoxygenplasmaetching”（1999）关键词：HOPGSiO2光刻胶HF酸石墨柱FIG.1.SEMimagesofislandarrayscreatedonaHOPGsurfaceFIG.2.SEMimagesHOPGislandssmearedonaSi(001)substrate厚度小于10个纳米文献：“Fabricationandelectric-field-d

2、ependenttransportmeasurements ofmesoscopicgraphitedevices”（2005）关键词：氧离子刻蚀HOPGAFMFIG.3.thicknessesrangingfrom10to100nmandlateralsize,2um文献：“ElectricFieldEffectinAtomicallyThinCarbonFilms”（2004）FIG.4.不同厚度的石墨烯片层在光学显微镜下的照片所标厚度为AFM测量值FIG.5.有褶皱的单层石墨烯AFM图KEYWORD:patt

3、erningHOPGphotoresistscotchtapepeelingacetoneSI/SIO2waterpropanolultrasoundRESULT:d<10nmflake文献：“Lowenergypureshearmilling:Amethodforthepreparationofgraphitenano-sheets”（2006）KEYWORD:graphitepowderbowlpestlewater(001)latticeplaneFIG.6.SEMmicrographsof(a)graphi

4、tepowder,(b)and(c)graphitemilled20hTable.1.Thespecificsurfaceareaofthepowders,Sbet;theaveragethick文献：“PreparationofColloidalDispersionsofGrapheneSheetsinOrganicSolventsbyUsingBallMilling”（2010）FIG.7.(a)GNsdispersedinsolventaredelaminatedbymillballsingrindingpr

5、ocess(b)graphenesheetsareformedinsituinsolventFIG.8.AFMimageofthesupernatantgraphenedepositedonamicasubstrate文献：“Preparationandexaminationofmultilayergraphenenanosheetsbyexfoliationofgraphiteinhighefficientattritormill”(2010)FIG.9.(a)highefficientattritormillF

6、IG.10.(b)酒精溶剂中研磨10h的SEM图片，多层石墨烯层完全分开了文献：“Depositinggraphenefilmsonsolidandperforatedsubstrates”FIG.11.Schematicconfigurationofthe‘writingtool’:thesubstrateisputona2Dstage.TheHOPGingotisgentlytouchingthesubstrateandthestageismovedtoobtainthedesiredprintedfeature

7、。FIG.12.transparent2DcrystalontopoftheSi