Formation of parallel aligned nano-fibrils of a donor-acceptor conjugated copolymer via controlling J-aggregates and post treatment

doi:10.1039/c3sm51986d

CORC > 化学研究所 > 中国科学院化学研究所

	Formation of parallel aligned nano-fibrils of a donor-acceptor conjugated copolymer via controlling J-aggregates and post treatment
	Xu, Yaozhuo 1,2; Liu, Jiangang 1,2; Wang, Haiyang 1,2; Yu, Xinhong 1,2; Xing, Rubo 1,2; Han, Yanchun 1,2
刊名	SOFT MATTER
	2013
卷号	9 期号:41 页码:9849-9856
ISSN号	1744-683X
DOI	10.1039/c3sm51986d
英文摘要	We increased the content of J-aggregates in poly[2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-2,2' : 5',2 '' : 5 '',2 '''-quaterthiophene](PDQT) solution by choosing appropriate solvents. It was found that the higher content of J-aggregates in solution in good solvents (i.e. CF) led to the formation of parallel aligned nano-fibrils. This morphological transition from the disordered domains to ordered ones could also occur after thermal treatment or solvent vapor annealing. Parallel aligned fibrils of PDQT formed in films via annealing at 200 degrees C for 20 min or solvent vapor annealing in a CF atmosphere with a relatively low vapor pressure for 24 hours. In the films filled with parallel aligned fibrils, the PDQT molecules adopted an edge-on orientation and the pi-pi stacking direction of molecules was perpendicular to the growth direction of fibrils. PDQT chains preferred to adopt the extended conformations without chain-folding due to the extremely rigid backbones. The intact conjugation planes of rigid PDQT chains with extended conformations allow the further growth of parallel aligned fibrils, which enhanced the connectivity between crystalline domains. The results in this work are thought to be helpful to improve the charge-carrier transport in PDQT films.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000325372300016
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54771]
专题	中国科学院化学研究所
通讯作者	Han, Yanchun
作者单位	1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yaozhuo,Liu, Jiangang,Wang, Haiyang,et al. Formation of parallel aligned nano-fibrils of a donor-acceptor conjugated copolymer via controlling J-aggregates and post treatment[J]. SOFT MATTER,2013,9(41):9849-9856.
APA	Xu, Yaozhuo,Liu, Jiangang,Wang, Haiyang,Yu, Xinhong,Xing, Rubo,&Han, Yanchun.(2013).Formation of parallel aligned nano-fibrils of a donor-acceptor conjugated copolymer via controlling J-aggregates and post treatment.SOFT MATTER,9(41),9849-9856.
MLA	Xu, Yaozhuo,et al."Formation of parallel aligned nano-fibrils of a donor-acceptor conjugated copolymer via controlling J-aggregates and post treatment".SOFT MATTER 9.41(2013):9849-9856.