Effect of Halogenation in Isoindigo-Based Polymers on the Phase Separation and Molecular Orientation of Bulk Heterojunction Solar Cells
文献类型：期刊论文
| 作者 | Zheng, Yu-Qing; Wang, Zhi; Dou, Jin-Hu; Zhang, Shi-Ding; Luo, Xu-Yi; Yao, Ze-Fan; Wang, Jie-Yu; Pei, Jian |
| 刊名 | macromolecules
 |
| 出版日期 | 2015-08-25 |
| 卷号 | 48期号:16页码:5570-5577 |
| 英文摘要 | fluorinated and chlorinated isoindigo-based polymers, f-iidt and cl-iidt, were developed as the donor materials for photovoltaic cells. although showing similar frontier orbital energy levels, both polymers exhibited distinct solar cell device performance, for example, power conversion efficiency of 4.60% for cl-iidt and 1.19% for f-iidt. the investigation of photophysical properties demonstrated that the strong preaggregation of f-iidt was formed in solution due to increased noncovalent interactions between the backbones of the polymer. therefore, large crystal domains in blended thin films with no preferred crystallographic orientation were obtained. on the other hand, the introduction of chlorine atoms increased the torsional angle of the polymer backbone, resulting in reduced crystallization tendency. films with less crystallinity and face-on polymer orientation contributed to better device performance of cl-iidt. our research proved that the effects of halogenation are far more than the tuning of frontier energy levels. phase separation in blended films, including size of the crystallized domains and molecular packing orientation, is also greatly influenced by halogenation. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | polymer science |
| 研究领域[WOS] | polymer science |
| 关键词[WOS] | field-effect transistors ; acceptor conjugated polymers ; open-circuit voltage ; photovoltaic performance ; benzodithiophene copolymers ; organic semiconductors ; morphology ; fluorine ; efficiency ; mobility |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360324400016 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146501]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Bioorgan Chem & Mol Engn, Minist Educ,Ctr Soft Matter Sci & Engn,Coll Chem, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yu-Qing,Wang, Zhi,Dou, Jin-Hu,et al. Effect of Halogenation in Isoindigo-Based Polymers on the Phase Separation and Molecular Orientation of Bulk Heterojunction Solar Cells[J]. macromolecules,2015,48(16):5570-5577. |
| APA | Zheng, Yu-Qing.,Wang, Zhi.,Dou, Jin-Hu.,Zhang, Shi-Ding.,Luo, Xu-Yi.,...&Pei, Jian.(2015).Effect of Halogenation in Isoindigo-Based Polymers on the Phase Separation and Molecular Orientation of Bulk Heterojunction Solar Cells.macromolecules,48(16),5570-5577. |
| MLA | Zheng, Yu-Qing,et al."Effect of Halogenation in Isoindigo-Based Polymers on the Phase Separation and Molecular Orientation of Bulk Heterojunction Solar Cells".macromolecules 48.16(2015):5570-5577. |
入库方式： OAI收割
来源：大连化学物理研究所
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