Uniaxial alignment of poly(3-hexylthiophene) nanofibers by zone-casting approach

doi:10.1007/s10118-013-1284-x

CORC > 化学研究所 > 中国科学院化学研究所

	Uniaxial alignment of poly(3-hexylthiophene) nanofibers by zone-casting approach
	Gao, Xiang; Xing, Ru-bo; Liu, Jian-gang; Han, Yan-chun
刊名	CHINESE JOURNAL OF POLYMER SCIENCE
	2013-05-01
卷号	31 期号:5 页码:748-759
关键词	Conjugated Polymer Zone-casting Uniaxial Alignment
ISSN号	0256-7679
DOI	10.1007/s10118-013-1284-x
英文摘要	The preparation of large area coverage of films with uniaxially aligned poly(3-hexylthiophene) (P3HT) nanofibers by using zone-casting approach is reported. The length and the orientation of the nanofibers are defined by the solubility of the solvent, the P3HT molecular weight and the substrate temperature. The length of the oriented nanofibers could be increased from 1 mu m to more than 10 mu m by adding poor solvent into the P3HT solution. It is found that for P3HT of relatively low molecular weight, a solvent with relatively low solubility has to be chosen to get the oriented film. While for the high molecular weight P3HT, the solvent with a relatively high solubility has to be used. The well-aligned film could be obtained because of the solute concentration gradient in the region where the critical concentration is reached during the zone-casting process. Particularly, the solvent evaporation rate and crystallization rate must be chosen properly to satisfy the stationary conditions above, which were controlled by an appropriate choice of solvent and substrate temperature. The film prepared by zone-casting approach had microcrystalline P3HT domains with more inter-chain order than spin-coating film. Meanwhile, the P3HT pi-pi stacking direction was parallel to the alignment direction of the nanofibers.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000317985200004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46921]
专题	中国科学院化学研究所
通讯作者	Han, Yan-chun
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	Gao, Xiang,Xing, Ru-bo,Liu, Jian-gang,et al. Uniaxial alignment of poly(3-hexylthiophene) nanofibers by zone-casting approach[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2013,31(5):748-759.
APA	Gao, Xiang,Xing, Ru-bo,Liu, Jian-gang,&Han, Yan-chun.(2013).Uniaxial alignment of poly(3-hexylthiophene) nanofibers by zone-casting approach.CHINESE JOURNAL OF POLYMER SCIENCE,31(5),748-759.
MLA	Gao, Xiang,et al."Uniaxial alignment of poly(3-hexylthiophene) nanofibers by zone-casting approach".CHINESE JOURNAL OF POLYMER SCIENCE 31.5(2013):748-759.