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时间:2019-03-08
《介孔zno微球的制备及其在染料敏化太阳能电池中的应用》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Vo1.29,No.1第29卷第1期红外与毫米波学报.2010年2月J.InfraredMillim.WavesFebruary,2010文章编号:1001—9014(2010)01—0001—05PREPARATIONOFMESoPOROUSZnOMICROSPHERESANDTHEIRAPPLICATIONINDYE.SENSITIZEDSOLARCELLSTAOJun—Chao,SUNYan,GEMei—Ying,CHENXin,DAINing(NationalLaboratoryforInfraredPhysics:Shangh
2、aiInstituteofTechnicalPhysics,ChineseAcademyofSciences,Shanghai200083,China)Abstract:AnovelZnOphotoanodewithhi【ghspecificSurfaceareaandgoodlightscatteringabilitywasfabricatedfordye-sensitizedsolarcells(DSSCs).ThephotoanodecomprisedofmesoporousZnOmierosphereswhichwereprep
3、aredbyasol·vothermalprocess.ThestructuresandmorphologiesofZnOmicrospheresweremeasuredandconfirmedbymeansofx·raydiffraction(XRD),scanningelectronmicroscopy(SEM),energydispersivespectrum(EDS),andmulti·pointBmnauer·Emmett—Teller(BET)analysis.ZnOmicrospheresareinsub-micromet
4、erscaleandhaveBETspecificsurfaceareaof一50m·g~.Furthermore.a一31.LmthickphotoanodemadefromZnOmicrospheresresuhesinapreliminaryshort·circuitcurrentdensity(。)of一4.5mA。cm~withanopen-circuitvoltage()of~602mVandaconversioneficiencyof1.28%inDSSCs.AllthesesuggestthatmesoporousZnO
5、microspherescanbeanalternativeandfeasiblephotoanodemate-rialforDSSCs.Keywords:Zn0;mesoporousmicrosphere;dye-sensitizedsolarcells(DSSCs)CLCnumbet:TM914.4Dognlnent:A介孔ZnO微球的制备及其在染料敏化太阳能电池中的应用陶俊超,孙艳,葛美英,陈鑫,戴宁(中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083)摘要:制备了一种新型的染料敏化太阳电池的光阳极,该电极由溶剂
6、合成的具有高比表面积和良好光散射特性的ZnO介孔微球组成。采用x射线衍射、扫描电子显微镜、能谱仪及N:吸附脱附等手段,分析了介孔ZnO微球的结构和形貌。所得介孔微球尺寸在亚微米范围,比表面积约为50m·g~。将ZnO介孔微球成功应用到染料敏化太阳电池中,当光阳极为3m时,组成的原型器件的短路电流密度约为4.5mA·am~,开路电压约为602mV,转换效率可达1.28%。研究结果表明,ZnO介孔微球是一种优异的染料敏化太阳电池的光阳极材料。关键词:ZnO;介孔微球;染料敏化太阳电池criticalrequirementsofphotoan
7、odepreparationsshouldIntroductionthereforebeanimprovementoflightharvestingforin—DSSCshavebeenoneofthemostpromisingcan—creasingthec0nversionefficiency0fDSSCs[·6。.Itisdidatesforsolarcellsbecauseoflowcostandenviron.knownthatthelightharvestingofDSSCsstronglyde-mentalcompatib
8、ility【卜.Toimprovelightconversionpendsonthephotonabsorptioninthephotoanodes.eficiencyofDSSCsatadesirable
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