典型文献
Effect of Polymer Chain Regularity on the Photovoltaic Performance of Organic Solar Cells
文献摘要：
In this work,regio-regular and random polymers(reg-PTF and ran-PTF)comprising benzodithiophene and 3-fluorothiophene units are developed to investigate the influence of polymer chain regularity on the photovoltaic performance.Interestingly,reg-PTF exhibits higher HOMO energy level(～0.2 eV)than that of ran-PTF due to the more ordered molecular structure and higher crystallization.As the result,the HOMO energy level offset between donor and acceptor can be well controlled by selecting different acceptors.Using BTP-ec9-4F with a much deep HOMO energy level as acceptor,reg-PTF-based devices display an inferior PCE of 7.66％compared with ran-PTF based ones(11.78％)due to the too large HOMO energy levels offset.When blending with Y18-1F,the PCE of reg-PTF-based devices is increased to 13.23％due to the appropriate energy level.In comparison,the ran-PTF-based devices nearly do not work because of the negative HOMO energy levels offset.This work indicates that both the polymer chain regularity and the energy level offset between the donor and acceptor material are important to the performance of organic solar cells.
文献关键词：
中图分类号：
作者姓名：
Hang Wang;Hao Lu;Ya-Nan Chen;Andong Zhang;Yuqiang Liu;Cai'e Zhang;Yahui Liu;Xinjun Xu;Zhishan Bo
作者机构：
College of Textiles&Clothing,State Key Laboratory of Bio-fibers and Eco-textiles,Qingdao University,Qingdao 266071,China;Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875,China;College of Materials Science and Engineering,Shenzhen University,Shenzhen 518060,China
文献出处：
引用格式：
[1]Hang Wang;Hao Lu;Ya-Nan Chen;Andong Zhang;Yuqiang Liu;Cai'e Zhang;Yahui Liu;Xinjun Xu;Zhishan Bo-.Effect of Polymer Chain Regularity on the Photovoltaic Performance of Organic Solar Cells)[J].高分子科学（英文版）,2022(08):996-1002
A类：
fluorothiophene,ec9,Y18
B类：
Effect,Polymer,Chain,Regularity,Photovoltaic,Performance,Organic,Solar,Cells,this,work,regio,random,polymers,PTF,comprising,benzodithiophene,units,developed,investigate,influence,chain,regularity,photovoltaic,performance,Interestingly,exhibits,higher,HOMO,energy,eV,than,that,due,more,ordered,molecular,structure,crystallization,result,offset,between,donor,can,well,controlled,by,selecting,different,acceptors,Using,BTP,4F,much,deep,devices,display,inferior,PCE,compared,ones,too,large,levels,When,blending,1F,increased,appropriate,comparison,nearly,not,because,negative,This,indicates,both,material,important,organic,solar,cells
AB值：
0.470144
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