F-Substituted oligothiophenes serve as nonfullerene acceptors in polymer solar cells with open-circuit voltages >1 v

doi:10.1039/c8ta02781a

	F-Substituted oligothiophenes serve as nonfullerene acceptors in polymer solar cells with open-circuit voltages >1 v
	Duan, Tainan1,2 ; Babics, Maxime 2; Seitkhan, Akmaral 2; Firdaus, Yuliar 2; Liang, Ru-Ze 2; Cruciani, Federico 2; Liu, Shengjian 2; Lopatin, Sergei 3; Beaujuge, Pierre M.2
刊名	Journal of Materials Chemistry A
	2018
卷号	6 期号:20 页码:9368-9372
ISSN号	20507488
DOI	10.1039/c8ta02781a
英文摘要	We report on a set of two analogous, F-substituted oligothiophene derivatives (D5T6F-M and D7T8F-M), in which systematic fluorination at the thienyl moieties is shown to induce a sufficient increase in electron affinity (EA; i.e. suppressed LUMO level) and in ionization potential (IP; i.e. deeper HOMO) to (i) impart the molecules with electron-accepting and -transporting characteristics, and (ii) yield high open-circuit voltages >1 V in BHJ solar cells when combined with a low-bandgap polymer donor (PCE10) commonly used with fullerenes. The nonfullerene BHJ devices with the SM acceptor D5T6F-M achieve power conversion efficiencies (PCEs) of up to ca. 4.5% (vs. ca. 2% for D7T8F-M-based devices). Our study shows that -F substitutions in SM systems-otherwise used as donors-is an effective approach in the design of nonfullerene acceptors for efficient BHJ solar cells with polymer donors. © 2018 The Royal Society of Chemistry.
电子版国际标准刊号	20507496
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/7998]
专题	中国科学院重庆绿色智能技术研究院
作者单位	1.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 401122, China; 2.Physical Science and Engineering Division, KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal; 23955-6900, Saudi Arabia; 3.King Abdullah University of Science and Technology (KAUST), Core Labs, Thuwal; 23955-6900, Saudi Arabia
推荐引用方式 GB/T 7714	Duan, Tainan,Babics, Maxime,Seitkhan, Akmaral,et al. F-Substituted oligothiophenes serve as nonfullerene acceptors in polymer solar cells with open-circuit voltages >1 v[J]. Journal of Materials Chemistry A,2018,6(20):9368-9372.
APA	Duan, Tainan.,Babics, Maxime.,Seitkhan, Akmaral.,Firdaus, Yuliar.,Liang, Ru-Ze.,...&Beaujuge, Pierre M..(2018).F-Substituted oligothiophenes serve as nonfullerene acceptors in polymer solar cells with open-circuit voltages >1 v.Journal of Materials Chemistry A,6(20),9368-9372.
MLA	Duan, Tainan,et al."F-Substituted oligothiophenes serve as nonfullerene acceptors in polymer solar cells with open-circuit voltages >1 v".Journal of Materials Chemistry A 6.20(2018):9368-9372.