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1、ElectrochimicaActa83(2012)155–159ContentslistsavailableatSciVerseScienceDirectElectrochimicaActajournalhomepage:www.elsevier.com/locate/electactaAcombinedTiO2structurewithnanotubesandnanoparticlesforimprovingphotoconversionefficiencyindye-sensitizedsolarcellsDajiang∗Zheng,Miaoqian
2、gLv,ShipingWang,WenxiGuo,LanSun,ChangjianLinStateKeyLaboratoryforPhysicalChemistryofSolidSurfaces,andCollegeofChemistryandChemicalEngineering,XiamenUniversity,Xiamen361005,ChinaarticleinfoabstractArticlehistory:AnovelcombinedstructurewithamixtureofTiO2nanotubesandnanoparticleswas
3、fabricatedbyReceived7June2012anodizationofTi,followedbyacontrolledannealingpost-treatment.TheTiO2nanoparticleswiththeReceivedinrevisedform31July2012average31diameterof40nmwereuniformlydispersedonthesurfaceofTiO2nanotubeswiththediame-July2012AcceptedterAvailableonline8August2012of
4、110–130nmandthelengthof15m.Thephotoelectricbehavioroftheas-preparedphotoanodeindye-sensitizedsolarcellswasanalyzedbythemeasurementsofI–VandEIS.ItwasfoundthattheenergyKeywords:conversionefficiencyofthesolarcellwithcompositephotoanodewas5.75%,enhancedupto25.8%comparedtothatofthepho
5、toanodeofpureTiO2nanotubestructureinthesamecondition.CombinedTiO2structure©2012ElsevierLtd.Allrightsreserved.NanotubearraysNanoparticlesEnergyconversionefficiencyDye-sensitizedsolarcells1.Introductiontransferperformance.Thesecondmethodistofillthe3D-nanoparticlepowdersintothe1D-nano
6、tubearraysusingmechan-Titaniumdioxide(TiO2)nanostructureremainsoneofthemosticalfriction,vacuumimmersionandelectrophoreticdepositionwidelyusedindye-sensitizedsolarcells(DSSC),duetoitsout-methods[18,19,21,22].Duetothesealingpropertiesofthenan-standingphotoelectricproperties,environ
7、mentfriendlyfeature,otubearrays,mostofthepowdersareusuallydifficulttoenterintochemicalstabilityandlowcost.SinceProf.Grätzel[1]firstlyusedthebottomofnanotubearrays.Thethirdwayischemicalliquidnano-TiO2fortheDSSCin1991,researchershaveadoptedvariousdeposition.Thenanotubearrayswerestill
8、airtight,andtheliquidstrategiestoimprove