A Medium Bandgap D-A Copolymer Based on 4-Alkyl-3,5-difluorophenyl Substituted Quinoxaline Unit for High Performance Solar Cells
文献类型：期刊论文
| 作者 | Wang, Tao1,2; Lau, Tsz-Ki3; Lu, Xinhui3; Yuan, Jun1; Feng, Liuliu1; Jiang, Lihui1; Deng, Wei2; Peng, Hongjian1; Li, Yongfang4; Zou, Yingping1 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2018-04-24 |
| 卷号 | 51期号:8页码:2838-2846 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/acs.macromol.8b00326 |
| 英文摘要 | Development of high-performance donor-acceptor (D-A) copolymers has been indicated as a promising strategy to improve the power conversion efficiencies (PCEs) of organic solar cells (OSCs). In this work, a new medium bandgap conjugated D-A copolymer, HFAQx-T, based on 4,8-bis(5-(2-ethylhexyl)thiophen-2yObenzo[1,2-b:4,5-bldithiophene (BDT-T) as donor unit, 4-alkyl3,5-difluorophenyl substituted quinoxaline (HFAQx) as the acceptor unit, and thiophene as the spacer, was designed and synthesized. HFAQx-T is a well-compatible donor polymer; OSCs based on HFAQx-T exhibit excellent performance in both fullerene and fullerene-free based devices. The optimized conventional single junction bulk heterojunction (BHJ) OSCs of FIFA.Qx-T:PC71BM showed a PCE of 9.2%, with an open circut voltage (1/,) of 0.9 V, a short circuit current (Jj of 14.0 mA cm-2, and a fill factor (FF) of 0.74. Also, when blended with 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)indanone)-5,5,11,11-tetrakis(4-hexylpheny1)dithieno[2,3-d:2',3'-dl-s-indaceno[1,2-b:5,6-1/1-dithiophene (ITIC), the HFAQx-T-based device exhibited a PCE of 9.6%. HFAQx-T is among a few D-A copolymers that can deliver >9% efficiency in both fullerene and fullerene-free solar cells. This work demonstrates that the 4-alkyl-3,5-difluorophenyl substituted quinoxaline (Qx) is a promising electron-accepting building block in constructing ideal D-A copolymers for OSCs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000431088700009 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43237]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zou, Yingping |
| 作者单位 | 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 2.Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China 3.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China 4.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Tao,Lau, Tsz-Ki,Lu, Xinhui,et al. A Medium Bandgap D-A Copolymer Based on 4-Alkyl-3,5-difluorophenyl Substituted Quinoxaline Unit for High Performance Solar Cells[J]. MACROMOLECULES,2018,51(8):2838-2846. |
| APA | Wang, Tao.,Lau, Tsz-Ki.,Lu, Xinhui.,Yuan, Jun.,Feng, Liuliu.,...&Zou, Yingping.(2018).A Medium Bandgap D-A Copolymer Based on 4-Alkyl-3,5-difluorophenyl Substituted Quinoxaline Unit for High Performance Solar Cells.MACROMOLECULES,51(8),2838-2846. |
| MLA | Wang, Tao,et al."A Medium Bandgap D-A Copolymer Based on 4-Alkyl-3,5-difluorophenyl Substituted Quinoxaline Unit for High Performance Solar Cells".MACROMOLECULES 51.8(2018):2838-2846. |
入库方式： OAI收割
来源：化学研究所
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