FePC在Ag(110)基底上吸附能级与结构的分析

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1、移关键词：有机发光器件；铁酞菁(FePc)；S．K生长模式；功函数；化学位VAbstractOrganicelectroluminescenceisahighlyadvancedtechnologyinthefieldofflat-paneldisplay,whichhavebeenpaidmoreandmoreattentionbyitspotentialapplications．OrganicLight-emittingDeviceshavebeenconsidered嬲thedominantcandidatesforfutur

2、eelectronicdeviceswhichwillreplacetheliquid-crystaldisplaytechnologybeforelong，becauseofaseriesofattractiveadvantagessuch嬲highluminescence’efficiency,fullcolourfuldisplay，broadingvisualangle，shortreactivetime，loweroperationvoltage，lowerworkingtemperatureandetc．Butthere

3、areseveralproblemsofOLEDs，suchasluminescenceefficiency,life·span，thestabilityandetc．Inordertosolvethoseproblems，muchmoreeffortsontheresearchesoftheOLEDshavebeenusedastheeffectivewaystoimprovetheorganicsemiconductorindustry．However,theknowledgeaboutinterfacepropertiesis

4、almostbasedontheexperience，andthebasictheoryoforganicsemiconductorluminescencehasnotbeenpaidenoughattentionyet．BecausetheOLEDsisbasedonthestructureofthinfilm，themanufacture，propertiesandstructureofthinfilmCanobviouslyinfluencetheapplicationsofOLEDs．Therefore，thesystemi

5、cstudiesofthebasictheoryrelatedonOLEDsarenecessary,whichincludedorderinggrowthofthethinfilm,chargetransport，propertiesofluminescenceandetc，andisnecessaryforimprovingperformanceandluminescenceefficiencyoftheOLEDs．X-myphotoelectronspectroscopy(xPS)whichalsoknown嬲Electron

6、SpectroscopyforChemicalAnalysis(ESCA)，hashighlysensitivityonsurfaceanalysis，whichissuitableforthequalityandquantityanalysisofsurfacephysics．Itisalsoappliedintheresearchofchemicalvalence．therefore，itCanbewidelyusedonmaterial，electricmaterial，chemistry,mechanismandetc．So

7、weusePhotoemissionmeasurementsforIronPhthalocyanine(FePC)overlayeronAg(110)inourresearch．TheXPSmeasurementsshowaweakinteractionbetweenFePCandAgsubstrate．WiththeXPSdatas，aStranski·KrastanovgrowthmodelCanbecalculated．Wedesigntwokindsofgrowingmodels，andthencompare、)l，itIl

8、thechemicalshiftdatatoVIidentifywhichonecanfulfilltheexperimentaldata．(xPs)measurementsalsoshowadecreaseinworkfunctio