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| Effect of Poly (3-hexylthiophene) Nanofibrils on Charge Separation and Transport in Polymer Bulk Heterojunction Photovoltaic Cells | |
| Zhao, Yun1,2; Shao, Shuyan1,2; Xie, Zhiyuan1; Geng, Yanhou1; Wang, Lixiang1 | |
| 2009-10-01 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| ISSN | 1932-7447 |
| Volume | 113Issue:39Pages:17235-17239 |
| Abstract | Crystalline poly (3-hexylthiophene) (P3HT) nanofibrils are introduced into the P3HT: [6, 6]-phenyl C61-butyric acid methyl ester (PCBM) composite films via P3HT preaggregation in solution by adding a small amount of acetone, and the correlation of P3HT nanofibrils and the optoelectronic properties of P3HT:PCBM bulk heterojunction photovoltaic cells is investigated. It is found that the optical absorption and the hole transport or the resulted P3HT:PCBM composite films increase with the increase of the amount of P3HT nanofibrils due to the increased P3HT crystallinity and highly interconnected nanofibrillar P3HT networks. However, it is also found that high contents of crystalline P3HT nanofibrils may restrain PCBM molecules from demixing with the P3HT component that forms electron traps in the active layer. and hence reduce the charge collection efficiency. Small contents of P3HT nanofibrils not only improve the demixing between P3HT and PCBM components, but also enhance the hole transport via crystalline P3HT nanofibrillar networks, resulting in efficient charge collection. |
| DOI | 10.1021/jp9038286 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000269999700059 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iccas.ac.cn/handle/121111/66756 |
| Collection | 中国科学院化学研究所 |
| Corresponding Author | Xie, Zhiyuan |
| Affiliation | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Yun,Shao, Shuyan,Xie, Zhiyuan,et al. Effect of Poly (3-hexylthiophene) Nanofibrils on Charge Separation and Transport in Polymer Bulk Heterojunction Photovoltaic Cells[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(39):17235-17239. |
| APA | Zhao, Yun,Shao, Shuyan,Xie, Zhiyuan,Geng, Yanhou,&Wang, Lixiang.(2009).Effect of Poly (3-hexylthiophene) Nanofibrils on Charge Separation and Transport in Polymer Bulk Heterojunction Photovoltaic Cells.JOURNAL OF PHYSICAL CHEMISTRY C,113(39),17235-17239. |
| MLA | Zhao, Yun,et al."Effect of Poly (3-hexylthiophene) Nanofibrils on Charge Separation and Transport in Polymer Bulk Heterojunction Photovoltaic Cells".JOURNAL OF PHYSICAL CHEMISTRY C 113.39(2009):17235-17239. |
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