An efficient photoanode consisting of TiO2 nanoparticle-filled TiO2 nanotube arrays for dye sensitized solar cells.pdf

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1、JournalofPowerSources268(2014)941e949ContentslistsavailableatScienceDirectJournalofPowerSourcesjournalhomepage:www.elsevier.com/locate/jpowsourAnefficientphotoanodeconsistingofTiO2nanoparticle-filledTiO2nanotubearraysfordyesensitizedsolarcellsaaababJunZhang,QuantongL

2、i,SiqianLi,YiWang,CongYe,PierreRuterana,a,*HaoWangaHubeiCollaborativeInnovationCenterforAdvancedOrganicChemicalMaterials,FacultyofPhysicsandElectronicTechnology,HubeiUniversity,Wuhan430062,PRChinabCIMAP,UMR6252CNRS,ENSICAEN,UCBN,CEA,6BoulevardduMarechalJuin,14050C

3、aenCedex,FrancehighlightsTiO2nanoparticlesweresuccessfullyfilledintoTNTarraysbyTiO2soltreatment.ThePCEoftheDSSCwasimprovedby107%viasuchasoltreatment.ThehighPCEoriginatesfromsuitableparticlesizeandinducedhydroxylgroups.Sol-treatingfor0.5e2hisappropriateforTNTarra

4、ystoobtainPCEabove9.6%.2h'ssoltreatmentforTNTarraysgivestheoptimumPCEof9.86%.articleinfoabstractArticlehistory:AnefficientphotoanodeconsistingofTiO2nanoparticle-filledTiO2nanotube(TNT)arraysispreparedbyReceived12April2014asolegelprocessthroughhydrolysisandcondensati

5、onoftitaniumtetrachlorideinanaqueousmediumReceivedinrevisedformcontainingalcoholandammonia.ByintroducingtheTiO2nanoparticlesofproperparticlesize~20nm31May2014intoTNTarrays,thesurfacearea,dyeadsorption,short-circuitphotocurrentdensity(Jsc),opencircuitAccepted25June2

6、014voltage(Voc)andthepowerconversionefficiency(PCE)ofdye-sensitizedsolarcells(DSSCs)aresignif-Availableonline7July2014icantlyimproved(upto107%enhancementonPCE).Particularly,theadditionofalcoholandammoniainTiO2solresultsinmorehydroxylgroupschemisorbedontothesurfaceof

7、thephotoanodes,whichisKeywords:favorableforachievinglargeamountofdyeadsorption.Theinfluenceofsol-treatingtimeontheTitaniananotubearraysDye-sensitizedsolarcellsmicrostructure,morphologyofphotoanodesandthecorrespondingphotovoltaicperformanceofDSSCsAnodizationareinvest

8、igated.ItisfoundthatimmersingtheTNTarraysintoTiO2solfor0.5e2hgivesPCEofDSSCPhotoanodehigherthan9.6%,andthehighestPCEof9.86%isachievedinDSSCwhentr