Hexafluoroquinoxaline Based Polymer for Nonfullerene Solar Cells Reaching 9.4% Efficiency
文献类型：期刊论文
| 作者 | Xu, Shutao1; Feng, Liuliu1; Yuan, Jun1; Zhang, Zhi-Guo2; Li, Yongfang2; Peng, Hongjian1; Zou, Yingping1,3 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2017-06-07 |
| 卷号 | 9期号:22页码:18816-18825 |
| 关键词 | Hexafluoroquinoxaline Photovoltaic Polymer High Efficiency Thermal Annealing Nonfullerene |
| 英文摘要 | Through introducing six fluorine atoms Onto quinoxaline (Qx), a new electron acceptor unit-hexafluoroquinoxaline (HFQx) is first synthesized. On the basis of this unit, we synthesize a new donor-acceptor (D-A) copolymer (HFQx-T), which is composed of a benzodithiophene (BDT) derivative donor block and an HFQx accepting block. The strong electron-withdrawing properties of fluorine atoms increase significantly the open-circuit voltage (V-oc) by tuning the highest occupied molecular Orbital (HOMO) energy level. In addition, fluorine atoms enhance the absorption coefficient of the conjugated copolymer and change the film morphology, which implies an increase of the short-circuit current density (J(sc)) and fill factor (FF). Indeed, the HFQx-T:ITIC blended film achieves an impressive power conversion efficiency (PCE) of 9.4% with large short-current density (J(sc)) of 15.60 mA/cm(2), high V-oc of 0.92 V, and FF of 65% via two step annealing (thermal annealing (TA) and solvent vapor annealing (SVA) treatments). The excellent results obtained show that the new copolymer HFQx-T synthesized could be a promising candidate for organic photovoltaics. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38490]  |
| 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, Hunan, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Shutao,Feng, Liuliu,Yuan, Jun,et al. Hexafluoroquinoxaline Based Polymer for Nonfullerene Solar Cells Reaching 9.4% Efficiency[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(22):18816-18825. |
| APA | Xu, Shutao.,Feng, Liuliu.,Yuan, Jun.,Zhang, Zhi-Guo.,Li, Yongfang.,...&Zou, Yingping.(2017).Hexafluoroquinoxaline Based Polymer for Nonfullerene Solar Cells Reaching 9.4% Efficiency.ACS APPLIED MATERIALS & INTERFACES,9(22),18816-18825. |
| MLA | Xu, Shutao,et al."Hexafluoroquinoxaline Based Polymer for Nonfullerene Solar Cells Reaching 9.4% Efficiency".ACS APPLIED MATERIALS & INTERFACES 9.22(2017):18816-18825. |
入库方式： OAI收割
来源：化学研究所
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