A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells

Tao Wang, Rui Sun, Shengjie Xu, Jie Guo, Wei Wang, Jing Guo, Xuechen Jiao, Jianbo Wang, Shuangfeng Jia, Xiaozhang Zhu, Yongfang Li, Jie Min

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3 Citations (Scopus)

Abstract

Realizing the triple functions of simultaneously improved open circuit voltage (Voc), short circuit current density (Jsc) and fill factor (FF) enabled by material design is a vital challenge for achieving efficient and stable polymer solar cells (PSCs). Herein, we developed a new wide-bandgap donor-acceptor (D-A) copolymer, J101, with a down-shifted highest occupied molecular orbital (HOMO) level by chlorine substitution on its 2-alkyl-benzo[d][1,2,3]triazole (BTz) unit. The PSCs fabricated by combining the J101 donor with the indenoindene-containing fused-ring electron acceptor ZITI demonstrated a remarkable power conversion efficiency (PCE) of 14.43% with a high Voc of 0.937 V, a high Jsc of 21.25 mA cm-2 and a high FF of 72.48%, benefitting from the low HOMO level of the donor, suitable nanoscale morphology, efficient charge transport properties and reduced recombination losses. Furthermore, semitransparent PSCs based on the optimized J101:ZITI blend exhibited the best PCE of 11.04% with an average visible transmittance (AVT) of 21.69%. This work demonstrates that the chlorine substituted BTz unit is an excellent electron-accepting building block for high-performance opaque and semitransparent PSCs.

Original languageEnglish
Pages (from-to)14070-14078
Number of pages9
JournalJournal of Materials Chemistry A
Volume7
Issue number23
DOIs
Publication statusPublished - 14 May 2019

Cite this

Wang, Tao ; Sun, Rui ; Xu, Shengjie ; Guo, Jie ; Wang, Wei ; Guo, Jing ; Jiao, Xuechen ; Wang, Jianbo ; Jia, Shuangfeng ; Zhu, Xiaozhang ; Li, Yongfang ; Min, Jie. / A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells. In: Journal of Materials Chemistry A. 2019 ; Vol. 7, No. 23. pp. 14070-14078.
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title = "A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells",
abstract = "Realizing the triple functions of simultaneously improved open circuit voltage (Voc), short circuit current density (Jsc) and fill factor (FF) enabled by material design is a vital challenge for achieving efficient and stable polymer solar cells (PSCs). Herein, we developed a new wide-bandgap donor-acceptor (D-A) copolymer, J101, with a down-shifted highest occupied molecular orbital (HOMO) level by chlorine substitution on its 2-alkyl-benzo[d][1,2,3]triazole (BTz) unit. The PSCs fabricated by combining the J101 donor with the indenoindene-containing fused-ring electron acceptor ZITI demonstrated a remarkable power conversion efficiency (PCE) of 14.43{\%} with a high Voc of 0.937 V, a high Jsc of 21.25 mA cm-2 and a high FF of 72.48{\%}, benefitting from the low HOMO level of the donor, suitable nanoscale morphology, efficient charge transport properties and reduced recombination losses. Furthermore, semitransparent PSCs based on the optimized J101:ZITI blend exhibited the best PCE of 11.04{\%} with an average visible transmittance (AVT) of 21.69{\%}. This work demonstrates that the chlorine substituted BTz unit is an excellent electron-accepting building block for high-performance opaque and semitransparent PSCs.",
author = "Tao Wang and Rui Sun and Shengjie Xu and Jie Guo and Wei Wang and Jing Guo and Xuechen Jiao and Jianbo Wang and Shuangfeng Jia and Xiaozhang Zhu and Yongfang Li and Jie Min",
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Wang, T, Sun, R, Xu, S, Guo, J, Wang, W, Guo, J, Jiao, X, Wang, J, Jia, S, Zhu, X, Li, Y & Min, J 2019, 'A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells', Journal of Materials Chemistry A, vol. 7, no. 23, pp. 14070-14078. https://doi.org/10.1039/c9ta03272j

A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells. / Wang, Tao; Sun, Rui; Xu, Shengjie; Guo, Jie; Wang, Wei; Guo, Jing; Jiao, Xuechen; Wang, Jianbo; Jia, Shuangfeng; Zhu, Xiaozhang; Li, Yongfang; Min, Jie.

In: Journal of Materials Chemistry A, Vol. 7, No. 23, 14.05.2019, p. 14070-14078.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - A wide-bandgap D-A copolymer donor based on a chlorine substituted acceptor unit for high performance polymer solar cells

AU - Wang, Tao

AU - Sun, Rui

AU - Xu, Shengjie

AU - Guo, Jie

AU - Wang, Wei

AU - Guo, Jing

AU - Jiao, Xuechen

AU - Wang, Jianbo

AU - Jia, Shuangfeng

AU - Zhu, Xiaozhang

AU - Li, Yongfang

AU - Min, Jie

PY - 2019/5/14

Y1 - 2019/5/14

N2 - Realizing the triple functions of simultaneously improved open circuit voltage (Voc), short circuit current density (Jsc) and fill factor (FF) enabled by material design is a vital challenge for achieving efficient and stable polymer solar cells (PSCs). Herein, we developed a new wide-bandgap donor-acceptor (D-A) copolymer, J101, with a down-shifted highest occupied molecular orbital (HOMO) level by chlorine substitution on its 2-alkyl-benzo[d][1,2,3]triazole (BTz) unit. The PSCs fabricated by combining the J101 donor with the indenoindene-containing fused-ring electron acceptor ZITI demonstrated a remarkable power conversion efficiency (PCE) of 14.43% with a high Voc of 0.937 V, a high Jsc of 21.25 mA cm-2 and a high FF of 72.48%, benefitting from the low HOMO level of the donor, suitable nanoscale morphology, efficient charge transport properties and reduced recombination losses. Furthermore, semitransparent PSCs based on the optimized J101:ZITI blend exhibited the best PCE of 11.04% with an average visible transmittance (AVT) of 21.69%. This work demonstrates that the chlorine substituted BTz unit is an excellent electron-accepting building block for high-performance opaque and semitransparent PSCs.

AB - Realizing the triple functions of simultaneously improved open circuit voltage (Voc), short circuit current density (Jsc) and fill factor (FF) enabled by material design is a vital challenge for achieving efficient and stable polymer solar cells (PSCs). Herein, we developed a new wide-bandgap donor-acceptor (D-A) copolymer, J101, with a down-shifted highest occupied molecular orbital (HOMO) level by chlorine substitution on its 2-alkyl-benzo[d][1,2,3]triazole (BTz) unit. The PSCs fabricated by combining the J101 donor with the indenoindene-containing fused-ring electron acceptor ZITI demonstrated a remarkable power conversion efficiency (PCE) of 14.43% with a high Voc of 0.937 V, a high Jsc of 21.25 mA cm-2 and a high FF of 72.48%, benefitting from the low HOMO level of the donor, suitable nanoscale morphology, efficient charge transport properties and reduced recombination losses. Furthermore, semitransparent PSCs based on the optimized J101:ZITI blend exhibited the best PCE of 11.04% with an average visible transmittance (AVT) of 21.69%. This work demonstrates that the chlorine substituted BTz unit is an excellent electron-accepting building block for high-performance opaque and semitransparent PSCs.

UR - http://www.scopus.com/inward/record.url?scp=85067259140&partnerID=8YFLogxK

U2 - 10.1039/c9ta03272j

DO - 10.1039/c9ta03272j

M3 - Article

VL - 7

SP - 14070

EP - 14078

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 23

ER -