Enhancing performance of non-fullerene organic solar cells via side   chain engineering of fused-ring electron acceptors

doi:10.1016/j.dyepig.2016.12.065

CORC > 北京大学 > 工学院

	Enhancing performance of non-fullerene organic solar cells via side chain engineering of fused-ring electron acceptors
	Yan, Cenqi ; Wu, Yang ; Wang, Jiayu ; Li, Rong ; Cheng, Pei ; Bai, Huitao ; Zhan, Zhiqiang ; Ma, Wei ; Zhan, Xiaowei
刊名	DYES AND PIGMENTS
	2017
关键词	Organic solar cell Fused-ring electron acceptor Nonfullerene Side chain engineering Indacenodithiophene POWER CONVERSION EFFICIENCY CONJUGATED POLYMERS PHOTOVOLTAIC CELLS DONOR ABSORPTION MORPHOLOGY TRANSPORT ORIENTATION SEPARATION
DOI	10.1016/j.dyepig.2016.12.065
英文摘要	A series of fused-ring electron acceptors with indacenodithiophene as core, 2-(3-oxo-2,3-dihydroinden-1 -ylidene) malononitrile as end groups, thiophene with different side chains as pi bridge are designed, synthesized and applied in non-fullerene organic solar cells (OSCs). The effects of alkyl side chains on absorption, energy level, molecular packing, domain size, domain purity, charge transport and photovoltaic performance are systematically investigated. Via the steric hindrance effect, increase in carbon number of side chains slightly downshifts HOMO energy levels, upshifts LUMO energy levels and thereby increases open circuit voltage from 0.84 to 0.95 V gradually. Short circuit current, fill factor and efficiency vary non-monotonically with aliphatic carbon number of alkyl chains and reach maximum value simultaneously when carbon number is six. (C) 2016 Elsevier Ltd. All rights reserved.; 973 Program [2013CB834702]; NSFC [91433114, 21504006, 21534003]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; SCI(E); ARTICLE; 627-634; 139
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474422]
专题	工学院
推荐引用方式 GB/T 7714	Yan, Cenqi,Wu, Yang,Wang, Jiayu,et al. Enhancing performance of non-fullerene organic solar cells via side chain engineering of fused-ring electron acceptors[J]. DYES AND PIGMENTS,2017.
APA	Yan, Cenqi.,Wu, Yang.,Wang, Jiayu.,Li, Rong.,Cheng, Pei.,...&Zhan, Xiaowei.(2017).Enhancing performance of non-fullerene organic solar cells via side chain engineering of fused-ring electron acceptors.DYES AND PIGMENTS.
MLA	Yan, Cenqi,et al."Enhancing performance of non-fullerene organic solar cells via side chain engineering of fused-ring electron acceptors".DYES AND PIGMENTS (2017).