期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 121, 期 8, 页码 4740-4746出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b00816
关键词
-
资金
- National Science Foundation (NSF) [DMR-1554841]
- University of Southern Mississippi
- NSF-NRT:INTERFACE (NSF) [1449999]
- American Chemical Society, American Chemical Society Mississippi Section
- Office of Vice President of Research at University of Southern Mississippi
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1554841] Funding Source: National Science Foundation
Non-doped and chemically p-doped poly(3-hexylthiophene) (P3HT) nanowires are investigated by optical spectroscopy and atomic force microscopy (AFM) to reveal the effects of doping on their aggregation processes and nanoscale morphologies. The AFM studies on the non-doped P3HT nanowires formed in the early aggregation stage demonstrate that P3HT molecules will probably go through either packing of high-aspect ratio multi-chain/single-chain aggregates or packing of solubilized individual chains depending on experimental conditions. High-resolution AFM images also show the connecting segments between ordered domains of P3HT. For p-doping of P3HT in the solution phase, the addition of 7,7,8,8-tetracyano-2,3,5,6-tetrafluoroquinodimethane (F-4-TCNQ), a p-dopant, will greatly accelerate the aggregation rate of 1D P3HT nanostructures. The doped P3HT nanowires are comprised of linearly connected domains that are 40-60 nm wide and 5-10 nm high. Compared with the non-doped P3HT nanowires, doped nanowires show smoother edges and less protruding segments, likely due to a different aggregation mechanism. Furthermore, the doped nanowires tend to agglomerate into disordered bundles and clusters because of the presence of F-4-TCNQ counterions and complexity resulting from Coulomb interactions and other doping-induced growth defects.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据