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

Tainan Duan; Maxime Babics; Akmaral Seitkhan; Yuliar Firdaus; Ru Ze Liang; Federico Cruciani; Shengjian Liu; Sergei Lopatin; Pierre M. Beaujuge

doi:10.1039/c8ta02781a

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

Tainan Duan^*, Maxime Babics, Akmaral Seitkhan, Yuliar Firdaus, Ru Ze Liang, Federico Cruciani, Shengjian Liu, Sergei Lopatin, Pierre M. Beaujuge

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	9368-9372
Number of pages	5
Journal	Journal of Materials Chemistry A
Volume	6
Issue number	20
DOIs	https://doi.org/10.1039/c8ta02781a
State	Published - 2018

Bibliographical note

Funding Information:
The authors acknowledge nancial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST) and under support by the KAUST Office of Sponsored Research (OSR) under Award No. CRG_R2_13_BEAU_KAUST_1. Dr Duan acknowledges nancial support from National Natural Science Foundation of China (No. 21702202).

Publisher Copyright:
© 2018 The Royal Society of Chemistry.

ASJC Scopus subject areas

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c8ta02781a

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

abstract = "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.",

author = "Tainan Duan and Maxime Babics and Akmaral Seitkhan and Yuliar Firdaus and Liang, {Ru Ze} and Federico Cruciani and Shengjian Liu and Sergei Lopatin and Beaujuge, {Pierre M.}",

note = "Funding Information: The authors acknowledge nancial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST) and under support by the KAUST Office of Sponsored Research (OSR) under Award No. CRG_R2_13_BEAU_KAUST_1. Dr Duan acknowledges nancial support from National Natural Science Foundation of China (No. 21702202). Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

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AU - Duan, Tainan

AU - Babics, Maxime

AU - Seitkhan, Akmaral

AU - Firdaus, Yuliar

AU - Liang, Ru Ze

AU - Cruciani, Federico

AU - Liu, Shengjian

AU - Lopatin, Sergei

AU - Beaujuge, Pierre M.

N1 - Funding Information: The authors acknowledge nancial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST) and under support by the KAUST Office of Sponsored Research (OSR) under Award No. CRG_R2_13_BEAU_KAUST_1. Dr Duan acknowledges nancial support from National Natural Science Foundation of China (No. 21702202). Publisher Copyright: © 2018 The Royal Society of Chemistry.

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

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

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

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