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题名:
From Isoindigo to Dibenzonaphthyridinedione: A Building Block for Wide-Bandgap Conjugated Polymers with High Power Conversion Efficiency
作者: Cai, MA; Bao, XC; Wang, X; Zhang, HR; Qiu, M; Yang, RQ; Yang, CM; Wan, XB
刊名: CHEMISTRY OF MATERIALS
出版日期: 2016
卷号: 28, 期号:17, 页码:6196-6206
DOI: 10.1021/acs.chemmater.6b02225
通讯作者: Wang, X ; Yang, RQ ; Wan, XB (reprint author), Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, 189 Songling Rd, Qingdao 266101, Peoples R China. ; Wan, XB (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
文章类型: 期刊论文
英文摘要: Most wide-bandgap (WBG) conjugated polymers with E-g > 2.2 eV exhibit low power conversion efficiency (PCE) due to their limited absorption window. Here we report the synthesis of a novel tetracyclic fused building block dibenzonaphthyridinedione (DBND) from isoindigo and its application as an acceptor building block for wide-bandgap copolymers with improved PCE. The Stille copolymerization of this building block with 5,5'-bis(trimethylstannyl)-2,2'-bithiophene (2T) and (E)-1,2-bis(5-(trirnethylstannyl)thiophen-2-yl)ethane (TVT) results in two WBG polymers PDBND-2T (E-g 2.32 eV) and PDBND-TVT (E-g 2.23 eV), respectively. Both polymers act as excellent donors in high-performance organic solar cells (OSCs). When blended with phenyl-C-71-butyric acid methyl ester (PC71BM), PDBND-2T based OSCs exhibit a PCE of 5.75%, which makes it the broadest bandgap OSCs with PCE over 5%. PDBDN-TVT based OSCs featured a high PCE up to 6.32%. Such efficiency is the highest reported to date for a conjugated polymer at such a broad bandgap. Moreover, without additives or annealing process, PDBND-TVT based OSCs exhibit an efficiency around 6.0% with a thick active layer (240 nm) and the performance shows little sensitivity to polymer:PC71BM weight ratios (range from 1:1.5 to 1:3), which makes PDBND-TVT a potential material for processable large-area tandem or ternary OSCs.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000383318500023
ISSN号: 0897-4756
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26517
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Cai, MA,Bao, XC,Wang, X,et al. From Isoindigo to Dibenzonaphthyridinedione: A Building Block for Wide-Bandgap Conjugated Polymers with High Power Conversion Efficiency[J]. CHEMISTRY OF MATERIALS,2016-01-01,28(17):6196-6206.
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