The mechanisms for introduction of n-dodecylthiol to modify the P3HT/PCBM morphology
文献类型：期刊论文
| 作者 | Liu, Jiangang; Shao, Shuyan; Wang, Hanfu; Zhao, Kui; Xue, Longjian; Gao, Xiang; Xie, Zhiyuan; Han, Yanchun |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2010-05-01 |
| 卷号 | 11期号:5页码:775-783 |
| 关键词 | Conjugated Polymers Photovoltaic Cells Performance Polythiophene Additive Transformation |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2010.01.017 |
| 英文摘要 | The mechanisms for introduction of the additive to improve the poly(3-hexylthiophene) (P3HT):methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM) organic solar cells performance are investigated. We add n-dodecylthiol to P3HT/PCBM solution and find that it both improves P3HT crystallinity and enhances P3HT/PCBM phase separation extent. UV-vis absorption spectroscopy (UV-vis) and dynamic light scattering (DLS) results reveal that n-dodecylthiol reduces the P3HT chains entanglement in the solution, which facilitates coil-to-rod transformation, a premise condition for P3HT crystallization. Also, it discloses that the influence of PCBM on the P3HT molecular interaction is diminished by adding n-dodecylthiol, this consequently benefits the P3HT crystallization during the film-forming process. Furthermore, the enhanced P3HT crystallinity reduces the PCBM amount which dissolved in the amorphous regions of P3HT, then promotes the aggregation of PCBM, which contributes to the controlled scale of phase segregation. Thus an increased P3HT crystallinity and a commensurate scale of phase separation balancing for exciton dissociation and charge transport and/or collection are finally obtained. This results in an almost threefold increase in device efficiencies when the volume fraction of additive is 2.0%, compared with reference devices without any additive in the photoactive layer as a consequence. (C) 2010 Elsevier B. V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000276638100009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71063]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, Yanchun |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jiangang,Shao, Shuyan,Wang, Hanfu,et al. The mechanisms for introduction of n-dodecylthiol to modify the P3HT/PCBM morphology[J]. ORGANIC ELECTRONICS,2010,11(5):775-783. |
| APA | Liu, Jiangang.,Shao, Shuyan.,Wang, Hanfu.,Zhao, Kui.,Xue, Longjian.,...&Han, Yanchun.(2010).The mechanisms for introduction of n-dodecylthiol to modify the P3HT/PCBM morphology.ORGANIC ELECTRONICS,11(5),775-783. |
| MLA | Liu, Jiangang,et al."The mechanisms for introduction of n-dodecylthiol to modify the P3HT/PCBM morphology".ORGANIC ELECTRONICS 11.5(2010):775-783. |
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。