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Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications
Liu, Zhe1; Liu, Deyu2,3; Chen, Weiye1; Wang, Junyi2,3; Li, Feng4; Wang, Di2; Li, Yonghai2; Sun, Mingliang1; Yang, Renqiang2
2017-07-21
发表期刊JOURNAL OF MATERIALS CHEMISTRY C
卷号5期号:27页码:6798-6804
摘要Two novel copolymer donors based on one-dimensional (1D)-two-dimensional (2D) asymmetrical benzodithiophene (BDT) units (BDTPH-H and BDTPH-OR) and 2,3-diphenyl-5,8-di(thiophen-2-yl) quinoxaline (DTQx) were synthesized and compared with one-dimensional or two-dimensional symmetric BDT unit based photovoltaic polymers. Both asymmetrical polymers exhibited promising photovoltaic performance compared with 1D and 2D symmetric BDT polymers. The power conversion efficiency (PCE) of PBDTPH-DTQx based polymer solar cells is 5.6%, with balanced V-OC = 0.7 V, J(SC) = 11.89 mA cm(-2) and FF = 67.3%, which is almost the highest PCE compared with similar BDT unit and fluorine-free substituted DTQx based polymer. What is more, PBDTPH-DTQx shows better performance than PBDTPHO-DTQx due to the single phenyl making DTQx more planar and with better pi-pi stacking than alkoxy phenyl. These findings demonstrate that the 1D-2D asymmetrical BDT units are also applicable to poor planarity fluorine-free substituted quinoxaline acceptor system.
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1039/c7tc01329a
关键词[WOS]POLYMER SOLAR-CELLS ; CONJUGATED POLYMER ; MOLECULAR DESIGN ; ENERGY-LEVEL ; SIDE-CHAINS ; PROCESSING ADDITIVES ; PERFORMANCE ; EFFICIENCY ; ACCEPTOR ; POLYELECTROLYTE
收录类别SCI
语种英语
WOS研究方向Materials Science ; Physics
项目资助者NSFC(51573205 ; 21274134)
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000405744100019
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9627
专题先进有机功能材料研究组
作者单位1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 26100, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioprocess Technol, Qingdao 266101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Qingdao Univ Sci & Technol, Sch Polymer Sci & Engn, Key Lab Rubber Plast, Minist Educ Shandong Prov, 53 Zhengzhou Rd, Qingdao 266042, Peoples R China
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GB/T 7714
Liu, Zhe,Liu, Deyu,Chen, Weiye,et al. Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(27):6798-6804.
APA Liu, Zhe.,Liu, Deyu.,Chen, Weiye.,Wang, Junyi.,Li, Feng.,...&Yang, Renqiang.(2017).Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications.JOURNAL OF MATERIALS CHEMISTRY C,5(27),6798-6804.
MLA Liu, Zhe,et al."Asymmetric 2D benzodithiophene and quinoxaline copolymer for photovoltaic applications".JOURNAL OF MATERIALS CHEMISTRY C 5.27(2017):6798-6804.
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