中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells

文献类型:期刊论文

作者Jiang, Xudong1,2; Xu, Yunhua1; Wang, Xiaohui3; Yang, Fan2; Zhang, Andong2; Li, Cheng2; Ma, Wei3; Li, Weiwei2
刊名POLYMER CHEMISTRY
出版日期2017-06-07
卷号8期号:21页码:3300-3306
英文摘要In this work, we present a new strategy to use fused and twisted conjugated backbones to construct conjugated small molecules and polymers as electron acceptors for non-fullerene solar cells. The new conjugated materials containing binary perylene bisimide (PBI) units linked with coplanar thieno[3,2-b]thiophene (as trans-PBI) or twisted thieno[2,3-b]thiophene (as cis-PBI) and the corresponding conjugated polymer cis-polyPBI were developed. A fused conjugated backbone ensures good charge transport, in which the twisted polymer cis-polyPBI was found to show the highest electron mobility of 1.2 x 10(-2) cm(2) V-1 s(-1) in field-effect transistors. Meanwhile, a twisted conjugated backbone effectively prevents the aggregation and crystallization of PBI units, resulting in isotropic charge transport and finely tuned micro-phase separation in bulk-heterojunction thin films. The high electron mobility and isotropic crystallinity make the fused and twisted electron acceptors achieve high power conversion efficiencies above 6% in non-fullerene solar cells, while the coplanar molecule trans-PBI as the electron acceptor shows a very low efficiency of 0.13%.
语种英语
源URL[http://ir.iccas.ac.cn/handle/121111/38477]  
专题化学研究所_有机固体实验室
作者单位1.Beijing Jiaotong Univ, Sch Sci, Dept Chem, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
3.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Xudong,Xu, Yunhua,Wang, Xiaohui,et al. Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells[J]. POLYMER CHEMISTRY,2017,8(21):3300-3306.
APA Jiang, Xudong.,Xu, Yunhua.,Wang, Xiaohui.,Yang, Fan.,Zhang, Andong.,...&Li, Weiwei.(2017).Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells.POLYMER CHEMISTRY,8(21),3300-3306.
MLA Jiang, Xudong,et al."Conjugated polymer acceptors based on fused perylene bisimides with a twisted backbone for non-fullerene solar cells".POLYMER CHEMISTRY 8.21(2017):3300-3306.

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来源:化学研究所

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