Synchrotron radiation spectroscopy studies of the initial interaction of chromium and cobalt with the surface of titanium dioxide [Elektronische Ressource] / vorgelegt von Sebastian Müller
151 Pages
English
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Synchrotron radiation spectroscopy studies of the initial interaction of chromium and cobalt with the surface of titanium dioxide [Elektronische Ressource] / vorgelegt von Sebastian Müller

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151 Pages
English

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TSyncnat.hrotronorenradiationPsporgelegtectroscopGutacyProf.studiesDr.ofFtheys.initial1980inDr.terhmei?eraction.oGutacfnat.Chromium?ndlicandissertationCobaltonwithM?llerthe02.surfaceAltd?bofter:TitaniumrDioDieterxidehVreonhabil.derofFter:akult?trf?rAndreasMathematik,derNaturPr?fung:wi2010svsevnscDipl.-PhhaftenSebastianundgebInformatikamderAugustBrandeninburgiscernhenhTProf.ecrehnisc.henhabil.UnivScersit?tGutacCottbuster:zurDr.Erlangungrdesnat.akChristianademiscettenkheernhGradesProf.einesreDoktors.derhabil.NaturwissenscKleinhafteagnm(Dr.henrer.25.nat.)ebruargenehmigteDcobaltAbstractandInTithecframewworkonofcobaltthisisthesis,onensync2phrotronIndicationsradiationertiesbasedNevspoectroscopTheymetallicmethoredsreectedaregap.appliedwtospstudybtheofelectronicinstructuresthatofinstoicxidehiometricbRutilecalculatedsingleocrystalswandoTiOact.thethinterfacelms,appandstatestheemissioninitialestage3dofofcahromiumertieandalcobaltUHV,grothwthionwTiOwonenandthinterfacelms.

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TSyncnat.hrotronorenradiationPsporgelegtectroscopGutacyProf.studiesDr.ofFtheys.initial1980inDr.terhmei?eraction.oGutacfnat.Chromium?ndlicandissertationCobaltonwithM?llerthe02.surfaceAltd?bofter:TitaniumrDioDieterxidehVreonhabil.derofFter:akult?trf?rAndreasMathematik,derNaturPr?fung:wi2010svsevnscDipl.-PhhaftenSebastianundgebInformatikamderAugustBrandeninburgiscernhenhTProf.ecrehnisc.henhabil.UnivScersit?tGutacCottbuster:zurDr.Erlangungrdesnat.akChristianademiscettenkheernhGradesProf.einesreDoktors.derhabil.NaturwissenscKleinhafteagnm(Dr.henrer.25.nat.)ebruargenehmigteD2
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intersucxidierteherringerungungoderCharak-AnfangsphaseneingehenddesdieWVac2phstumsHinvconwChromgundXASCobaltzuaufvderPhotoObideer?caufwheSelbstreinigung,vononChromsd?nnenhselwirkungTiOTiOsometallisc-Filmen,standetigt,ingesetzt.dabResonanDietesicPhotoheremissioneiamesaubCrerenigt,Einkristalloneinanderund3damWTiOdie-Filmen,hFilmer?czeigtohlen-Auger-?hnliEinusschaftenhet.EmissionenundanzwiscderwurdeTite2ponenKaneite,Multiplett-derenbkinetiscDieheS-SpEnergieneinerdenenSauerstoeiompnamewsobTiicLwTiOeinBandl?ceResonanMand?nnundundtenenbMeinenRutil-EinkristallterschenalshiometriscTiAuger-Zerfallsknanalsgibteneisetspreceithen,aswhasOaufediemitExistenz?u?ert,deswurdedabgesccdieseLhst?tersucLadungstransferzustan-Wdeshenzur?cwiekgef?hrtstarkwird.ChromDiecResonanzinedesompTienLKonnacMwvOxidationszCharakterisierungCobalthenhnVundAuger-KanalsksicantiziertdererecTiXLwopiscaufUn-Kanhentemitl??tenaufheeinenteLbreitenektroskalenzband,Lbissp-20Vkt,Coster-KronigeinAuger-Kanalereschhlie?en,erfolgen,derobvzwomDefektzust?ndenormalenderLkzurauftreten.Mtehrotron-StrahlungemissionSyncdenwurde2pVTiAugerKangefolgzetdasswird.eDasZust?ndeAbscvheidenunvheidbarenonterChromCraufbzw.dem3d-artigTiOeiseeit.-Filmeiterhinf?hrteszuweineraufRedoF?higkx-ReaktionzuranwdersicGrenz?cdurche,VwderobbeihTiOnkArbtaminationorliegendenKdurcstohjedoOxidationhvderondesCrhiedenenvaufzuEigenscCrnicdertgebildetunwird.hDanebDieenectrittzwiscmetalliscCobalthesTiOChromistanenigerderalsObhener?cundder.heDennoauf.hInederoAnfangsphaseCobalt-Kwirdonenbnebeiderultra-hend?nnenompBedectekungenheineewiesen,wobeitergehendederOxidationuderdesmetalliscmittelshenRecKung,ompLadungstransfer-onenLigandenfeldeekteteer?czuhCridenRahmenwird.ObImhnetenbundeobacPhektrentet,eisendieeivCoonineinertetraedriscRe-OxidationKdesordinierungSubstratesvierzuatomTiOhin.ZusammenfassungmetalliscSatellitCobalt-KoonenKf?hrtoneneinerwiderspieResonanzanVderdieGrenz?chheetl?sstasiceherstrecaucwheiimdeutlicValenzbandbdiebxidierteegleitetompwird.teDiegelt.Reaktion.Conbacten.ts.1.In.tro.duction.and.motiv.ation.1.2.TheX-ramaterials3.3.13.2.1spTitanium.Dio.xide..the.......y.of.......sorption.3.3.2...sp.of.26...and...(110).......Chromium.........18.photo...Exp..3.2.1.1.Rutileectroscop.......of.....realization.....Resonan.constan.3.4.1.emission...tal.....A.eld.....preparation.........37.thin.....osition.....393.2.1.2.A.n.atase....Ph.d.sp.....19.tal...........21.absorption...............undamen.y.ectroscop.......erimen.XAS......5.2.1.323Elphotoectronicystructureinitialofytitaniumundamendiotxideectroscop.....Exp.of.........28.m.ry..........742.24.1Chromium.and.c.hromium.o.xides........Preparation.Dio.........38.cobalt..........................8.2.3.Cobalt.and.cobalt.o.xides3.2.1.ysical.kgroun.of.electron.ectroscop...........3.2.2.erimen.realization.PES.....................3.3.y.sp.y9.2.4.Metal.gro.wth.on.titanium.dio.xide.surfaces......22.F.tals.x-ra.ab.sp.y...........22.Exp.tal.of11.2.4.1.Chromium.gro.wth.on.titanium.d.i.o.xide3.4.t.electron.ectroscop.and.t.state.ectroscop.25.F.tals.resonan.photo.sp.y....12.2.4.2.Cobal3.4.2terimengrorealizationwthResPESon.titanium.di.o.xide..........3.5.tomic.ultiplets.c.stal.eects................14.331ExpSampleerimen37talRutilemetho.ds.17.3.1.Exp.erimen.tal.Setup......................4.2.of.Titanium.xide.lm.................4.3.and.dep..........17.3.2.Photo.electron.sp.ectroscop.y..i..5RutileResults.41endence5.15.4.1Rutilexi(110)112.....92.Multiple.....Gro.thin...............107...............dep...symmetry.dio.dio...........emission..41.5.1.1SummarySR-PES.Results....hiometry.....role.......xide.....h...........of.....ositi...dep............41.5.1.2.XAS.and.XLD.Results5.4.3.......ransfer.....osition.....xide.........defect.lm.........harge.....cess..46.5.1.3.ResPEShromiumRutile.(110)..114.dep...6.2.2.on...Electronic.................The.dio...state.....ii.on.....5.449on5.1.4.Multiple.t.Charge.T.ransfer.Calculationsresults...............XAS................54t5.1.5.Summary.Rutile.(110)....98.Charge.........102.cobalt.titanium.e.....6.Titanium.................6.1.1.structure59s5.2andTitanium.dio.xide.thin.lm........6.1.2.the.states.........Coster-Kronig.............113.of.titanium...........Time.p60o5.2.1.SR-PES.Results..gro.c.dio.s...116.................6.4.................118.wt.on.thin....606.4.25.2.2loXAS.and.XLD.Results....dep.on.titanium.xide.......90.Cobalt.osition.titanium.xide.....................92.SR-PES62.5.2.3.ResPES.Results........................5.4.2.results...............................9664Resonan5.2.4PhotoMultipleresultst.Charge.T.ransfer.Calculation............5.4.4.t.T.Calculations..............71.5.2.55.4.5SummaryofTitaniumdepdioonxidediothindlm..........105.Discussion.6.1.dio..................72.5.3.Chromium.dep.osited.on.titanium.dio107xideStoicl,mand.state.of.(110).thin.sample......................74.5.3.1.SR-PES.Results..107.The.of.c.transfer...................6.1.3.pro..........................746.25.3.2wthXAScResultson.dio.....................6.2.1.dep.and.ost.osition.xidation...........114.The.wt.of.hromium.titanium.xide.lm..82.5.3.3.ResPES.Results6.3.structure...............................117.Cobalt.osition....................87.5.3.4.Multiple.t.c.harge.transfer6.4.1calculatiogronhscobalt.titanium.xide.lm.........118.Oxidation.and.cal............89.5.3.5.Summary.of120chromiumknoSummaryCVandErkl?rungConclusionA123tBibliographiiiy139134cAbbreviationswledgemen135141Publications1431370
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