Solvent vapor-induced nanowire formation in poly(3-hexylthiophene) thin films

被引:129
作者
Kim, DH [1 ]
Park, YD [1 ]
Jang, Y [1 ]
Kim, S [1 ]
Cho, K [1 ]
机构
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea
关键词
nanowire; organic field-effect transistors; polythiophene; self-assembly; solvent vapor;
D O I
10.1002/marc.200400647
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Nanowire lengths and length-to-width aspect ratios in regioregular poly(3-hexylthiophene) (P3HT) were simply controlled through changes in the solvent vapor pressure during solidification. It is demonstrated that the nanowires grew by rod-to-rod association, in which the molecular long axis of the P3HT chains appeared to be well-oriented parallel to the silicon substrate (Si/SiOx). The formation of the nanowires took place by one dimensional self-assembly, governed by pi-pi stacking of the P3HT units.
引用
收藏
页码:834 / 839
页数:6
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