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Title:
High-performance ternary polymer solar cells from a structurally similar polymer alloy
Author: Shen, Wenfei1,2; Chen, Weichao1,2; Zhu, Dangqiang1; Zhang, Jidong4; Xu, Xiaofeng3; Jiang, Huanxiang1; Wang, Ting1; Wang, Ergang3; Yang, Renqiang1
Source: JOURNAL OF MATERIALS CHEMISTRY A
Issued Date: 2017-06-28
Volume: 5, Issue:24, Pages:12400-12406
DOI: 10.1039/c7ta02891a
DOC Type: Article
English Abstract: High-efficiency ternary polymer solar cells (PSCs) are fabricated by using two donor polymers (PBDTTPD and PBDTTT-C-T) with similar polymer backbones and complementary absorption and PC71BM as the acceptor. A high power conversion efficiency (PCE) of 9.3% is achieved with a high short-circuit current density (J(sc)) of 17.2 mA cm(-2). The enhanced J(sc) and PCEs are mainly attributed to the broadened photoresponse of the ternary blend. Good miscibility of the two donor polymers is found due to the similar polymer main chains, leading to the desired morphology between the donors and PC71BM in the ternary blends. The trend of open-circuit voltage (V-oc) variations indicates the formation of a polymer alloy in this ternary blend. Our work demonstrates that using two donor polymers with similar backbone structures is a rational strategy for realizing high-performance ternary PSCs.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Subject Extended: Chemistry ; Energy & Fuels ; Materials Science
WOS Keyword Plus: POWER CONVERSION EFFICIENCY ; 25TH ANNIVERSARY ARTICLE ; SMALL-MOLECULE ; NONFULLERENE ACCEPTORS ; 11-PERCENT EFFICIENCY ; IR SENSITIZATION ; ENERGY-TRANSFER ; FULLERENE ; CHAINS
Indexed Type: SCI
Funder: National Natural Science Foundation of China(61405209 ; Ministry of Science and Technology of China(2014CB643501 ; 51573205 ; 2010DFA52310) ; 21604092)
Language: 英语
WOS ID: WOS:000403664800047
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Content Type: 期刊论文
URI: http://ir.qibebt.ac.cn/handle/337004/9651
Appears in Collections:先进有机功能材料团队_期刊论文

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description.institution: 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Qingdao Univ, Coll Text & Clothing, Qingdao 266071, Peoples R China
3.Chalmers, Dept Chem & Chem Engn Polymer Technol, SE-41296 Gothenburg, Sweden
4.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

Recommended Citation:
Shen, Wenfei,Chen, Weichao,Zhu, Dangqiang,et al. High-performance ternary polymer solar cells from a structurally similar polymer alloy[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(24):12400-12406.
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