Donor-acceptor liquid crystalline conjugated cooligomers for the preparation of films with the ideal morphology for bulk heterojunction solar cells

	Donor-acceptor liquid crystalline conjugated cooligomers for the preparation of films with the ideal morphology for bulk heterojunction solar cells
	Bu LJ ; Guo XY ; Yu B ; Fu YY ; Qu Y ; Xie ZY ; Yan DH ; Geng YH ; Wang FS
刊名	polymer
	2011
卷号	52 期号:19 页码:4253-4260
关键词	BLOCK-COPOLYMERS ORGANIC PHOTOVOLTAICS PERYLENE BISIMIDE MOLECULAR DESIGN FULLERENE OLIGOMERS DIIMIDE SYSTEMS DYES
ISSN号	0032-3861
通讯作者	geng yh
中文摘要	a series of novel donor-acceptor (d-a) liquid crystalline conjugated cooligomers, i.e. f3t4-epp, f4t6-epp and f5t8-epp, which comprise oligo(fluorene-alt-bithiophene)s (ofbts) with the different lengths as the donor segments and a perylene diimide (pdi) derivative as the acceptor segment, were designed and synthesized. the cooligomers can form the films with the desired ideal morphology for bulk heterojunction (bhj) polymer solar cells (pscs). that means the films comprise ordered alternating d a lamellae perpendicular to the substrates. most importantly, the periods of the nanostructures can be tuned by varying molecular length and post-treatment condition. for f3t4-epp and f4t6-epp, the periods are close to the single and double molecular lengths upon thermal and solvent vapor annealing, respectively. however, only the nanostructures with the period close to the single molecular length were formed for f5t8-epp for both annealing processes. solar cells based on above nanostructured films were fabricated to demonstrate the advantages of the ideal morphology for bhj solar cells. it was found that the power conversion efficiency (pce) of the devices was dependent on the molecular length and the order of the films. solvent vapor annealed films exhibited the highest order therefore gave the best device performance. a pce of 1.75% was demonstrated with the solvent vapor annealed films of f5t8-epp. this performance represents the best among the solar cells based on the single molecular materials. (c) 2011 elsevier ltd. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000294796300011
公开日期	2012-06-08
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44375]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Bu LJ,Guo XY,Yu B,et al. Donor-acceptor liquid crystalline conjugated cooligomers for the preparation of films with the ideal morphology for bulk heterojunction solar cells[J]. polymer,2011,52(19):4253-4260.
APA	Bu LJ.,Guo XY.,Yu B.,Fu YY.,Qu Y.,...&Wang FS.(2011).Donor-acceptor liquid crystalline conjugated cooligomers for the preparation of films with the ideal morphology for bulk heterojunction solar cells.polymer,52(19),4253-4260.
MLA	Bu LJ,et al."Donor-acceptor liquid crystalline conjugated cooligomers for the preparation of films with the ideal morphology for bulk heterojunction solar cells".polymer 52.19(2011):4253-4260.