典型文献
Effects of Thieno[3,2-b]thiophene Number on Narrow-Bandgap Fused-Ring Electron Acceptors
文献摘要：
We synthesize and compare four near-infrared absorbing fused-ring electron acceptors named as nTTIC(n=2,3,4,and 5),based on different number of thieno[3,2-b]thiophene(TT)unit as the electron-donating core.With increasing the TT unit,absorption spectrum of theTTIC series red shifts,and the highest occupied molecular orbital(HOMO)upshifts notably.It is worth noting that 4TTIC and 5TTIC exhibit absorption edges approaching 1100 nm,which is the photoresponse limit of solar cells based on crystal silicon.When the TTIC series acceptors are blended with polymer donor PM6,the binary-blend organic solar cells based on 3TTIC show the best power conversion efficiency(PCE)of 13.1％.In contrast,2TTIC-based devices exhibit relatively lower PCE of 8.32％,mainly caused by the larger energy loss and blue-shifted absorption.Due to insufficient driving force of charge separation caused by very high HOMO,4TTIC and 5TTIC show poor PCEs lower than 3％.
文献关键词：
中图分类号：
作者姓名：
Tengfei Li;Guilong Cai;Yuze Lin;Xinhui Lu;Xiaowei Zhan
作者机构：
Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,School of Materials Science and Engineering,Peking University,Beijing 100871,China;Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Department of Physics,The Chinese University of Hong Kong,Hong Kong 999077,China
文献出处：
引用格式：
[1]Tengfei Li;Guilong Cai;Yuze Lin;Xinhui Lu;Xiaowei Zhan-.Effects of Thieno[3,2-b]thiophene Number on Narrow-Bandgap Fused-Ring Electron Acceptors)[J].高分子科学（英文版）,2022(08):914-920
A类：
Thieno,nTTIC,theTTIC,upshifts,4TTIC,5TTIC,TTIC,3TTIC,2TTIC
B类：
Effects,thiophene,Number,Narrow,Bandgap,Fused,Ring,Electron,Acceptors,We,synthesize,compare,four,near,infrared,absorbing,fused,ring,electron,acceptors,named,different,number,thieno,unit,donating,core,With,increasing,absorption,spectrum,series,highest,occupied,molecular,orbital,HOMO,notably,It,is,worth,noting,that,exhibit,edges,approaching,which,photoresponse,limit,solar,cells,crystal,silicon,When,blended,polymer,donor,PM6,binary,organic,show,best,power,conversion,efficiency,In,contrast,devices,relatively,lower,mainly,caused,by,larger,energy,loss,blue,shifted,Due,insufficient,driving,force,charge,separation,very,poor,PCEs,than
AB值：
0.596069
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