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RapidLbLassemblyforthickfilmfabrication微快车微信营销、Spin-assemblytechnique2、Sprayinglayer-by-layerdepositiontechnique3、ExponentialgrowthofLbLdepositedfilmsP.Schaaf,Langmuir2007,23,1898-1904ExponentialLbLassemblyE-LbLassembly:initiallyexponential,thenthegrowthprocessentersthelinearregime(i)Diffuseinandoutofpolyelectrolytesinthewholefilms(ii)Limitedtoweakpolyelectrolytes,especiallybiomacromoleculesBuildingblockswithlargedimensionsusuallyleadtothickfilms(rapidfilmfabrication).PolymericmicrogelsPolymericcomplexes(includingpolymeric-inorganiccomplexes)InorganicspeciesandtheiraggregatesPVPONPAAPMAANOnnCOOHCOOHnFormationofPVPON-PAAcomplexesPVPON-PAA_1.8(right)andPVPON-PAA_1.2(lef)complexesindeionizedwaterwithapHof1.5Turbidity:83%99%670nm238nmPVPON-PAA_1.2PVPON-PAA_1.8LbLdepositionofPVPON-PAA/PMAAfilmsNodryingstepwasusedinthefilmdepositionprocedure.J.Mater.Chem.2009,19,497a-e:PVPON-PAA_1.8/PMAAf:PVPON-PAA_1.2/PMAASurfacemorphologyofPVPON-PAA/PMAAfilms51015203020Influenceofdryingsteponfilmdeposition(a)PVPON-PAA_1.8/PMAA(b)PVPON-PAA_1.2/PMAA█:PVPON-PAA;:PMAAaandc)(PVPON-PAA_1.8/PMAA)*20bandd)(PVPON-PAA_1.2/PMAA)*20166.8±33.3nm132.3±10.1nm(PVPON&PAA_1.8/PMAA)*20,spin3000rpm,138.4±25.2nmSpin-coatedmultilayerfilmsCA~155.6°,slidingangle~2.6°Fabricationofsuperhydrophobiccoatings(PVPON-PAA_1.8/PMAA)*15POTS5mM.F.Rubner,NanoLett.,2004,4,1349100.5-bilayerpoly(allylaminehydrochloride)(PAH)/poly(acrylicacid)(PAA)mulitilayerfilms,followedbyacidtreatmentandovercoatingwithsilicaparticlesRapid,anddirectLbLdepositionprocesstothefabricationofmacroporouscoatingsDifficultyindirectLbLfabricationofmacro-porouscoatingsV.V.Tsukruk,Langmuir2008,24,5996PAH:poly(allylaminehydrochloride)PSS:poly(sodium4-styrenesulfonate)10bilayer17bilayerSelf-adjusting,howtoovercomeit?LbLassemblednanoporousPAH/PSSfilmsLbLdepositionofpolyelectrolytecomplexesforthefabricationoffoamcoatingsChem.Commun.2009,3901–3903nCOOH-+Nodryingstepwasusedforthefoamcoatingfabricationunlessitwasinthelastlayer.~178nm~125nmDiazoresin(DAR)PSSPAAFoamcoatingsforrecyclingusagetoremoveorganicdyesReleasewasperformedinH2O–ethanol–NaCl(1:0.8:0.06,w/w/w)ternarymixture.2.69madsorptioncapacity:1.78mmol/g(PAA-DAR/DAR-PSS)*15film,filmthickness:134±30nm.InfluenceofdryingsteponfoamcoatingfabricationThenon-dryingLbLdepositionprocessiscriticaltokeepthesphere-likestructureofPECsinthecoatingsandprohibittheself-adjustingtoformmacroposroufoamcoatings.HighlytransparentsuperhydrophobiccoatingsOutdoorphotovoltaicanddisplayingdevicesTransparentsuperhydrophobiccoatings14nmSiO2PAHPreparation:(1)(PAH/SiO2)*4(2)Calcinationtoremoveorganiccomponents(3)ChemicalvapordepositionofaPOTSlayerrmsroughness74.8nmCA:157°,SA:2°(1)Quartz(2)Quartzwithsuperhydrophobiccoating(1)(2)14nmSiO2PDDA-silicate(PDDA-silicate/PAA)*12(SiO2/PAH)*4+POTSHighlytransparentsuperhydrophobiccoatings--thefabricationofunderlyingARcoatingSiOONaONanSodiumsilicateNnH3CCH3+Cl-PDDALangmuir2008,24,10851-10857Chem.Commun.2009,2730.Highlytransparentsuperhydrophobiccoatings4005006007008009095100Transmittance(%)Wavelength/nmCA:157°,SA:1°(1)Barequartz(2)Transparentsuperhydrophobiccoating(3)Highlytransparentsuperhydrophobiccoating(1)(2)(3)(PDDA-silicate/PAA)*12+(SiO2/PAH)*4+POTSSelf-healingsuperhydrophobiccoatingsLi,Y.;Li,L.;Sun,J.Q.Angew.Chem.Int.Ed.2010,acceptedIssuesinsuperhydrophobiccoatings(i)Decompositionoflow-surface-energymaterialsonthecoatingsurface;(ii)Damageofhierarchicalstructuresbyscratching;(iii)CannotbesubjecttoplasmacleaningPlantsmaintaintheirsuperhydrophobicitybyregeneratingitsepicuticularwaxlayeraftertheyaredamaged.Schematicdescriptionoftheworkingprincipleofself-healingsuperhydrophobiccoatingsLbLdepositedPAH-SPEEK/PAAcoatings~527nmPAH(PAH-SPEEK/PAA)*60.5:2.70.4μmForion-triggeredexfoliationmethod,see:Sun,Chem.Mater.2007,19,5058-5062,Releasingsuperhydrophobiccoatingsbyanion-triggeredexfoliationmethodExfoliationsolution:aqueoussolutionwithapHof2.0Damaging-healingcyclesMigrationoffluoroalkylsilanetocoatingsurfaceResistancetoscratch,UVirradiationandplasmaetchingSurfaceofsandpaperScratchingdeviceLbLassembledfree-standingfilmsFree-standingfilmsrefertofilmsexistwithoutsolidsubstrates.(i)TobroadenfurthertheapplicationofLbLassembledmultilayerfilms.(ii)ToinvestigatedirectlytheelastomericpropertiesoftheLbLassembledfilms.Theexistingpreparativemethods(notrestrictedtoLbLfilms)SacrificiallayerRemovalofsubstrateDiagramoftheexcitonicenergylevelsintheREF(a)andtheCET(b)sample.Thethicklinesrepresentthebottomoftheexcitonband,thinsolidlinesthevibronicprogressions.Thedottedlinessymbolizetrapstates.(a)MostoftheexcitonsintheREFsamplearetrappedinsurfacestates,fromwheretheydecaynonradiatively.Onlydefect-poorNCscontributesignificantlytothePLyield.Evendefect-poorNCsmaybeaffectedviaexcitontransfertodefect-richNCs.(b)ExcitonsinthesixlayersofsmallersizedNCsaretrappedinsurfacestatessimilartothetrappingintheREFsample.However,thetrappedexcitonscanbetransferredveryefficientlyfromlayerswithsmallerNCstolayerswithlargerNCs.Mostim
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