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Title:
Efficient polymer solar cells based on poly(thieno[2,3-f]benzofuran-co-thienopyrroledione) with a high open circuit voltage exceeding 1 V
Author: Gao, Yueyue1,2; Saparbaev, Aziz3; Zhang, Yong1; Yang, Renqiang3; Guo, Fengyun1; Yang, Yulin2; Zhao, Liancheng1
Source: DYES AND PIGMENTS
Issued Date: 2017-11-01
Volume: 146, Pages:543-550
Keyword: Polymer solar cells ; Thieno[2,3-f]benzofuran ; Open-circuit voltage
DOI: 10.1016/j.dyepig.2017.07.057
DOC Type: Article
English Abstract: A new donor-acceptor type conjugated polymer (PTBFTPD) based on two-dimensional (2D) conjugated alkylthienyl substituted thieno[2,3-f]benzofuran (TBF) and thienopyrroledione (TPD) unit, was synthesized and applied as donor material for bulk heterojunction polymer solar cells. As a comparison, its counterpart conjugated polymer (PBDTTPD) based on allcylthienyl substituted thieno[2,3-f]benzothiophene (BDT) and TPD unit, was also synthesized. The thermal properties, optical and electrochemical properties, energy levels, molecular chain orientation stacking behavior and photovoltaic properties of two polymers were intensively investigated. Both polymers showed similar optical properties. Compared with PBDTTPD, PTBFTPD shown the similar absorption properties in solution and in a thin film. PTBFTPD had a slightly narrow bandgap of 1.83 eV while that of 1.85 eV for PBDTTPD. PTBFTPD displayed a deeper highest occupied molecular orbital (HOMO) energy level of (-5.64 eV), which was 0.1 eV lower than that for PBDTTPD. The XRD study showed that PTBFTPD possessed a closer pi-pi stacking than PBDTTPD. The photovoltaic properties were investigated under various conditions, the optimized power conversion efficiency (PCE) of 433% with an open-circuit voltage (V-oc) of as high as 1.09 V were obtained, which resulted in a 32% improvement in comparison with PBDTTPD/PC71BM-based device under the same conditions. (C) 2017 Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
WOS Subject Extended: Chemistry ; Engineering ; Materials Science
WOS Keyword Plus: PHOTOVOLTAIC PERFORMANCE ; SIDE-CHAINS ; CONJUGATED POLYMERS ; COPOLYMERS ; 10-PERCENT ; ACCEPTOR ; BANDGAP
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51403044 ; Ministry of Science and Technology of China(2014CB643501) ; Fundamental Research Funds for the Central Universities (Harbin Institute of Technology) ; 21644006 ; 21604092 ; 51573205)
Language: 英语
WOS ID: WOS:000410010100066
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Content Type: 期刊论文
URI: http://ir.qibebt.ac.cn/handle/337004/9586
Appears in Collections:先进有机功能材料团队_期刊论文

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description.institution: 1.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
2.Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

Recommended Citation:
Gao, Yueyue,Saparbaev, Aziz,Zhang, Yong,et al. Efficient polymer solar cells based on poly(thieno[2,3-f]benzofuran-co-thienopyrroledione) with a high open circuit voltage exceeding 1 V[J]. DYES AND PIGMENTS,2017,146:543-550.
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