| 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 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY C
 |
| Volume | 5Issue:27Pages:6798-6804 |
| Abstract | 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. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Physical Sciences |
| DOI | 10.1039/c7tc01329a |
| WOS Keyword | POLYMER SOLAR-CELLS ; CONJUGATED POLYMER ; MOLECULAR DESIGN ; ENERGY-LEVEL ; SIDE-CHAINS ; PROCESSING ADDITIVES ; PERFORMANCE ; EFFICIENCY ; ACCEPTOR ; POLYELECTROLYTE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Physics |
| Funding Organization | NSFC(51573205 ; 21274134) |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000405744100019 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/9627 |
| Collection | 先进有机功能材料研究组 |
| Affiliation | 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 |
| Recommended Citation 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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