A real-time study of the benefits of co-solvents in polymer solar cell processing
文献类型：期刊论文
| 作者 | van Franeker, Jacobus J.1,2,3; Turbiez, Mathieu4; Li, Weiwei1,2,5; Wienk, Martijn M.1,2,3; Janssen, Rene A. J.1,2,3 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2015-02-01 |
| 卷号 | 6 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/ncomms7229 |
| 英文摘要 | The photoactive layer of organic solar cells consists of a nanoscale blend of electron-donating and electron-accepting organic semiconductors. Controlling the degree of phase separation between these components is crucial to reach efficient solar cells. In solution-processed polymer-fullerene solar cells, small amounts of co-solvents are commonly used to avoid the formation of undesired large fullerene domains that reduce performance. There is an ongoing discussion about the origin of this effect. To clarify the role of co-solvents, we combine three optical measurements to investigate layer thickness, phase separation and polymer aggregation in real time during solvent evaporation under realistic processing conditions. Without co-solvent, large fullerene-rich domains form via liquid-liquid phase separation at similar to 20 vol% solid content. Under such supersaturated conditions, co-solvents induce polymer aggregation below 20 vol% solids and prevent the formation of large domains. This rationalizes the formation of intimately mixed films that give high-efficient solar cells for the materials studied. |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000350202100001 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53291]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Janssen, Rene A. J. |
| 作者单位 | 1.Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands 2.Eindhoven Univ Technol, Inst Complex Mol Syst, NL-5600 MB Eindhoven, Netherlands 3.Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands 4.BASF Schweiz AG, CH-4002 Basel, Switzerland 5.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Organ Solids Lab, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | van Franeker, Jacobus J.,Turbiez, Mathieu,Li, Weiwei,et al. A real-time study of the benefits of co-solvents in polymer solar cell processing[J]. NATURE COMMUNICATIONS,2015,6. |
| APA | van Franeker, Jacobus J.,Turbiez, Mathieu,Li, Weiwei,Wienk, Martijn M.,&Janssen, Rene A. J..(2015).A real-time study of the benefits of co-solvents in polymer solar cell processing.NATURE COMMUNICATIONS,6. |
| MLA | van Franeker, Jacobus J.,et al."A real-time study of the benefits of co-solvents in polymer solar cell processing".NATURE COMMUNICATIONS 6(2015). |
入库方式： OAI收割
来源：化学研究所
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