Synthesis of a new wide-bandgap conjugated copolymer with 3-trifluoromethylthiophene monomer and Its application to non-fullerene polymer solar cells

Amaladass Pitchamuthu; Chang Geun Park; Su Hong Park; Min Ju Cho; Dong Hoon Choi

doi:10.1080/15421406.2019.1648033

Synthesis of a new wide-bandgap conjugated copolymer with 3-trifluoromethylthiophene monomer and Its application to non-fullerene polymer solar cells

Amaladass Pitchamuthu, Chang Geun Park, Su Hong Park, Min Ju Cho, Dong Hoon Choi

Department of Chemistry

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

Abstract

In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)₂ showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.

Original language	English
Pages (from-to)	30-37
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals
Volume	686
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2019.1648033
Publication status	Published - 2019 Jun 13

Keywords

3-trifluoromethylthiophene
polymer solar cell
power conversion efficiency
wide-bandgap copolymer

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/15421406.2019.1648033

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title = "Synthesis of a new wide-bandgap conjugated copolymer with 3-trifluoromethylthiophene monomer and Its application to non-fullerene polymer solar cells",

abstract = "In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)2 showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.",

keywords = "3-trifluoromethylthiophene, polymer solar cell, power conversion efficiency, wide-bandgap copolymer",

author = "Amaladass Pitchamuthu and Park, {Chang Geun} and Park, {Su Hong} and Cho, {Min Ju} and Choi, {Dong Hoon}",

note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF-2019R1A2C2002647 and 2019R1A6A1A11044070). Publisher Copyright: {\textcopyright} 2019, {\textcopyright} 2019 Taylor & Francis Group, LLC.",

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doi = "10.1080/15421406.2019.1648033",

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AU - Pitchamuthu, Amaladass

AU - Park, Chang Geun

AU - Park, Su Hong

AU - Cho, Min Ju

AU - Choi, Dong Hoon

N1 - Funding Information: This research was supported by the National Research Foundation of Korea (NRF-2019R1A2C2002647 and 2019R1A6A1A11044070). Publisher Copyright: © 2019, © 2019 Taylor & Francis Group, LLC.

PY - 2019/6/13

Y1 - 2019/6/13

N2 - In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)2 showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.

AB - In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)2 showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.

KW - 3-trifluoromethylthiophene

KW - polymer solar cell

KW - power conversion efficiency

KW - wide-bandgap copolymer

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Synthesis of a new wide-bandgap conjugated copolymer with 3-trifluoromethylthiophene monomer and Its application to non-fullerene polymer solar cells

Abstract

Keywords

ASJC Scopus subject areas

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