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时间:2020-03-26
《P3HT修饰一维有序壳核式CdSZnO纳米棒阵列复合膜的光电化学性能.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、物理化学学~(WuliHuaxueXuebao)DecemberActaP.一Chim.Sin.2012,28(12),2861-28662861[Article]doi:10.3866/PKU.WHXB201209051www.whxb.pku.edu.cnP3HT修饰一维有序壳核式CdS/ZnO纳米棒阵列复合膜的光电化学性能孙宝郝彦忠'郭奋’李英品罗冲裴娟申世刚。(北京化工大学化学工程学院,北京100029;河北科技大学理学院,石家庄050018;河北大学化学与环境科学学院,河北保定071002)摘要:采用电化学方法在铟锡氧化物(ITO)导电玻璃
2、上制备了高度有序的ZnO纳米棒阵列,在ZnO纳米棒阵列上先后电化学沉积CdS纳米晶膜及聚3一己基噻吩(P3HT)薄膜得到P3HT修饰的一维有序壳核式CdS亿nO纳米阵列结构,并通过扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)、能量散射X射线(EDX)等表征手段证实了该结构的形成.以此纳米结构薄膜为光阳极组装新型半导体敏化太阳电池,研究了CdS纳米晶膜的厚度和P3HT薄膜的沉积对电池光伏性能的影响,初步探讨了电荷在电池结构中的传输机理,结果表明,CdS纳米晶膜和P3HT薄膜的沉积有效地拓宽了光阳极的光吸收范围,实验中电池的光电转换效率最
3、高达到1.08%.关键词:ZnO纳米棒阵列:CdS;聚3-己基噻吩:电化学沉积;壳核纳米结构:半导体敏化太阳电池中图分类号:O646PhotoelectrochemicalPropertiesofCdS/ZnOShell-CoreNanorodArraysModifiedwithP3HTSUNBaoHAOYan-Zhong_GUOFen’LIYing-Pin。LUOChongPEIJuanSHENShi—Gang。(CollegeofChemicalEngineering,Beo'ingUniversityofChemicalTechnology,B
4、eijing100029,PR.China;CollegeofSciences,HebeiUniversityofScienceandTechnology,Shijiazhuang050018,PR.China;CollegeofChemistryandEnvironmentalScienceHebeiUniversity,Baoding071002,HebeiProvince,PR.China)Abstract:HighlyOrderedZnOnanorodarrayswerepreparedonanindium.tinoxidefITO)glas
5、ssubstrateusinganelectrochemicaImethod.Thepoly(3一hexvIthioDhene)(P3HT)一modifiedCdS亿nOshell-corenanorodarrayswerefabricatedbyelectrodepositingCdSnanoparticlesandthenathinP3HTIayerontothepreparedZnOnanorodarrays.Scanningelectronmicroscopy(SEM),transmissionelectronmicroscopy(TEM),
6、X—raydifraction(XRD),andenergydispersiveX—rayspectroscopy(EDX)wereusedtocharacterizethesamplestoconfirmtheformationofthedesignednanostructures.Asemiconductor-sensitizedsolarcel1withthedesignednanostructureasthephotoanodewasfabricated.TheefectsofthethicknessoftheCdSlayerandthede
7、positionoftheP3HTlayeronthephotovoltaicperformanceofthedesignedsolarcel1wereinvestigated.aswellasthechargetransfermechanismofthesolarcelI.TheresultsindicatedthatlightabsorptionofthephotoanodewasbroadenedtOthevisibleregionthroughtheelectr0depOsitiOnoftheCdSnanopa~iclesandP3HTfiI
8、montotheZnOnanorods.AnenergyconversioneficiencyuptO1.0
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