New m-alkoxy-p-fluorophenyl difluoroquinoxaline based polymers in efficient fullerene solar cells with high fill factor
文献类型：期刊论文
| 作者 | Xu, Shutao1; Feng, Liuliu1; Yuan, Jun1; Cimrova, Vera2; Chen, Guohui1; Zhang, Zhi-Guo3; Li, Yongfang3; Peng, Hongjian1; Zou, Yingping1 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 50页码:7-15 |
| 关键词 | Quinoxaline D-a Copolymer Fullerene Solar Cells Solvent Additive High Fill Factor |
| 英文摘要 | Two new donor (D) -acceptor (A) copolymers, named m-O-p-F-DFQx-BDT (OFQx-T) and m-EH-p-FDFQx-BDT (EHFQx-T), which were based on meta-octyloxy-para-fluorophenyl and meta-ethylhexyloxypara-fluorophenyl difluoroquinoxaline as acceptor units (O-DFQx/EH-DFQx) and alkylthienyl substituted benzodithiophene (BDT) as a donor unit, were designed and synthesized. EHFQx-T had higher absorption coefficient than OFQx-T which contributed to larger short-circuit current density (J(sc)). EHFQx-T showed a lower the highest occupied molecular orbital (HOMO) which is beneficial for the voltage open-circuit (V-oc). The polymer solar cells (PSCs) based OFQx-T: PC71BM and EHFQx-T: PC71BM blended film as active layer showed high power conversion efficiency (PCE) of 7.60% and 8.44%, respectively, with 1,8diiodooctane (DIO) solvent additive treatment. More importantly, OFQx-T: PC71BM and EHFQxT: PC71BM had good fill factor (FF), especially the FF of OFQx-T: PC71BM was over 70%. The high FF contributed to obtain high PCEs for OFQx-T and EHFQx-T. The more balanced and higher charge mobility, smaller geminate recombination and suitable nanoscale phase separation size of EHFQx-T demonstrate that changing octyl chain to ethylhexyl chain in DFQx acceptor unit is efficient to improve photovoltaic properties in fullerene solar cells. (C) 2017 Elsevier B. V. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41093]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China 2.Acad Sci Czech Republ, Inst Macromol Chem, Heyrovsky Sq 2, CR-16206 Prague 6, Czech Republic 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Shutao,Feng, Liuliu,Yuan, Jun,et al. New m-alkoxy-p-fluorophenyl difluoroquinoxaline based polymers in efficient fullerene solar cells with high fill factor[J]. ORGANIC ELECTRONICS,2017,50:7-15. |
| APA | Xu, Shutao.,Feng, Liuliu.,Yuan, Jun.,Cimrova, Vera.,Chen, Guohui.,...&Zou, Yingping.(2017).New m-alkoxy-p-fluorophenyl difluoroquinoxaline based polymers in efficient fullerene solar cells with high fill factor.ORGANIC ELECTRONICS,50,7-15. |
| MLA | Xu, Shutao,et al."New m-alkoxy-p-fluorophenyl difluoroquinoxaline based polymers in efficient fullerene solar cells with high fill factor".ORGANIC ELECTRONICS 50(2017):7-15. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。