Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers

	Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers
	Dong,Xin; Deng,Yunfeng; Tian,Hongkun; Xie,Zhiyuan; Geng,Yanhou; Wang,Fosong
刊名	journal of materials chemistry a
	2015
卷号	3 期号:39 页码:19928-19935
关键词	POWER-CONVERSION EFFICIENCY NON-CHLORINATED SOLVENTS FIELD-EFFECT TRANSISTORS CIRCUIT CURRENT-DENSITY MOLECULAR-WEIGHT FILM TRANSISTORS PHOTOVOLTAIC PROPERTIES 10-PERCENT EFFICIENCY MORPHOLOGY CONTROL HOLE MOBILITIES
通讯作者	geng,yh
英文摘要	a low bandgap conjugated polymer, i.e., poly[2,2'-bithiophene-alt-7-fluoro-n,n'-bis(2-octyldodecyl) isoindigo] (p(1fiid-bt)), was synthesized. the polymer was soluble in non-chlorinated solvents such as o-xylene and mesitylene, and exhibited a film optical bandgap of 1.61 ev as calculated from the absorption onset and a deep highest occupied molecular orbital (homo) energy level of -5.46 ev as measured by an electrochemical method. remarkably high mobilities of 0.33 and 0.42 cm(2) v-1 s(-1) were obtained for organic field-effect transistors (ofets) based on pristine and annealed films, respectively. inverted polymer solar cells (pscs) were fabricated with phenyl-c-61-butyric acid methyl ester (pc61bm) as the acceptor material and o-xylene as the processing solvent. the device efficiency was insensitive to the thickness of the active layer, and all devices with film thickness in the range of 105-340 nm showed a power conversion efficiency (pce) higher than 6.5%. the devices based on 270 nm thick films displayed the highest performance with a v-oc of 0.89 v, a j(sc) of 14.50 ma cm(-2) and a ff of 0.58, leading to a pce of 7.46%. this is the first low bandgap conjugated polymer for pscs which combine three features: non-chlorinated solvent processability, high efficiency and insensitivity of efficiency to the active layer thickness.
收录类别	SCI
语种	英语
WOS记录号	WOS:000362041300039
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/64647]
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	Dong,Xin,Deng,Yunfeng,Tian,Hongkun,et al. Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers[J]. journal of materials chemistry a,2015,3(39):19928-19935.
APA	Dong,Xin,Deng,Yunfeng,Tian,Hongkun,Xie,Zhiyuan,Geng,Yanhou,&Wang,Fosong.(2015).Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers.journal of materials chemistry a,3(39),19928-19935.
MLA	Dong,Xin,et al."Isoindigo-based low bandgap conjugated polymer for o-xylene processed efficient polymer solar cells with thick active layers".journal of materials chemistry a 3.39(2015):19928-19935.