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题名: Effect of Alkyl Side Chains of Conjugated Polymer Donors on the Device Performance of Non-Fullerene Solar Cells
作者: Xia, Dongdong1; Wu, Yang2; Wang, Qiang3, 4; Zhang, Andong1; Li, Cheng1; Lin, Yuze5; Colberts, Fallon J. M.3, 4; van Franeker, Jacobus J.3, 4; Janssen, Rene A. J.3, 4; Zhan, Xiaowei5; Hu, Wenping1; Tang, Zheng6; Ma, Wei2; Li, Weiwei1
刊名: MACROMOLECULES
发表日期: 2016-09-13
卷: 49, 期:17, 页:6445-6454
收录类别: SCI
英文摘要: The influence of the chemical: structure of conjugated polymers on the nanophase separation and device performance in fullerene-based solar cells has been widely studied, while this is, less investigated in non-fullerene solar cells. In this work, we design three conjugated polymers With-different length of side chains, and we find that the length of side chains has little influence on the quantum efficiencies of non-fullerene solar cells. As a comparison, the length of side chains has a significant effect on the quantum efficiencies of fullerene-based solar cells. This indicates that morphology of the blended thin films in non-fullerene solar, cells is rather independent of the length of the donor side chains; and the mechanism for morphology evolution in the non-fullerene system is completely different from that in the fullerene system. Our conclusion is confirmed by a variety of advanced characterization techniques. The studies reveal that in blended thin films based on the non-fullerene material the donor polymers with different side chains have a Similar coherence length of pi-pi stacking, crystal size and domain purity, giving rise-to similar internal quantum efficiency and power conversion efficiency of the solar cells.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35254
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 10090, Peoples R China
2.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
3.Eindhoven Univ Technol, Mol Mat & Nanosyst, POB 513, NL-5600 MB Eindhoven, Netherlands
4.Eindhoven Univ Technol, Inst Complex Mol Syst, POB 513, NL-5600 MB Eindhoven, Netherlands
5.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
6.Tech Univ Dresden, Inst Angew Photophys, George Bahr Str 1, D-01069 Dresden, Germany
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