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1、Eur.Phys.J.Appl.Phys.(2013)62:30001THEEUROPEANDOI:10.1051/epjap/2013130048PHYSICALJOURNALAPPLIEDPHYSICSReviewArticleMetaloxidethinfilmsandnanostructuresforself-cleaningapplications:currentstatusandfutureprospectsMamidipudiGhanashyamKrishna1,a,MadhurimaVinjanampati2,andDebarunDhar
2、Purkayastha31SchoolofPhysics,UniversityofHyderabad,Hyderabad500046,India2DepartmentofPhysics,CentralUniversityofTamilNadu,Thiruvarur610001,India3DepartmentofPhysics,MizoramUniversity,Aizawl796004,IndiaReceived:24January2013/Accepted:17May2013Publishedonline:18June2013–cTheAutho
3、r(s)2013Abstract.Surfacesthatexhibitreversiblewettabilitytowardwaterareextremelyimportantforavarietyoftechnologicalapplications.Inthiscontext,thedevelopmentofsuperhydrophobicandsuperhydrophilicsurfacesforself-cleaningapplicationshasbeenreceivingagreatdealofattentioninthelastfewy
4、ears.Inthisreview,anoverviewofthecurrentstate-of-scienceandtechnologyofself-cleaningsurfacesispre-sented.Thecurrentunderstandingofphysicsofwettingleadingtosurfaceswithpredictive,controllableandreversiblewettabilityisfirstpresented.Thereviewthenfocusesonmaterials,mainlymetaloxides
5、andtheircomposites,employedforself-cleaningapplications.Itisshownthat,althoughconventionallyoxidesandpolymersareconsideredforself-cleaningapplications,recentdevelopmentspointtowardtheuseofartificiallyengineeredsurfaceswithhierarchicalroughness.Applicationsofself-cleaningfilmsinnon
6、-conventionalareassuchasprotectionoffabrics,solarcellsandstructuresrelatedtoculturalheritagearediscussed.Thereviewendswithanoutlookforthefutureintermsofscienceandtechnologyofself-cleaningsurfaces.1Introductionofmicro/nanostructuredpapillaecoveredbyhydrophobicwaxcrystalsontheirsu
7、rfaceswhichleadstodecreaseinThewettabilityofsurfacesbyfluidshasbeenthesubjectcontactareabetweenthewaterdropletandlotusleaf[1].ofgreatinterestformanyyearssinceitaffectsalargeWettingofasurfaceischaracterizedbytwodistinctnumberoffieldsrangingfrommedicinetoelectronics.Instates–complete
8、wettingandcompletenon-wetting.Com-particular,th
