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1、MaterialsLetters90(2013)60–63ContentslistsavailableatSciVerseScienceDirectMaterialsLettersjournalhomepage:www.elsevier.com/locate/matletElectrochromicperformanceofsol–geldepositedNiOthinfilmabcba,nDhanajiS.Dalavi,RupeshS.Devan,RaghunathS.Patil,Yuan-RonMa,PramodS.PatilaThinFilmsMaterialsLa
2、boratory,DepartmentofPhysics,ShivajiUniversity,Kolhapur416004,MS,IndiabDepartmentofPhysics,NationalDongHwaUniversity,Hualien97401,TaiwancDepartmentofPhysics,TheNewCollege,Kolhapur416012,IndiaarticleinfoabstractArticlehistory:Thenickeloxide(NiO)filmswerepreparedfromnickelacetateprecursorby
3、sol–geldipcoatingReceived2August2012technique.Thefilmswerecharacterizedfortheirstructural,compositional,morphological,optical,Accepted25August2012electrochromicalandcolorimetricmeasurementusingX-rayphotoelectronspectroscopy,scanningAvailableonline3September2012electronmicroscopy,cyclicvol
4、tammetry,opticaltransmittancestudiesandCIEsystemofcolorimetricKeywords:analysis.XPSmeasurementsrevealedthatthefilmsexhibitedpresenceofNiOphase.SEMimagesNickeloxideshowedasmoothandporousnatureofNiOthinfilm.TheECdevicemadeupofglass/ITO/NiO/KOH/ITO/Smartwindowsglassshowedopticalmodulationof51
5、%andrelativeluminancedifferenceof49.45%,respectively.2Inadditiontotheaforementionedparameters,thecolorationefficiencywasfoundtobe49cm/Cat550nm.&2012ElsevierB.V.Allrightsreserved.1.Introductionnatureorbothinorganicandorganic.Sol–geldepositionofNiOhasbeenrestrictedbyalackofsuitableprecursor
6、s,whichhaveElectrochromismisaphenomenonwhichinvolvespersistentandsufficientsolubilityandstabilityinalcoholsolvents.reversiblechangeofcolorinelectrochromic(EC)materialbyInthepresentwork,NiOthinfilmsweredepositedusingsol–þþþsimultaneousinjectionofelectronsandsmallions(H,Li,Na,geldipcoatingme
7、thodfromnickelacetateprecursorandelectro-etc.).Intherecentyears,transitionmetaloxideshaveattractedchromicpropertieswerestudiedandarereportedinthispaper.muchattentionduetotheirlowpowerconsumption,highcolora-tionefficiency(CE)andtheirmemoryeffectunderopencircuit2.Experimenta
