An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells

Jianqiu Wang; Maojie Zhang; Ji Lin; Zhong Zheng; Lei Zhu; Pengqing Bi; Haiyan Liang; Xia Guo; Jingnan Wu; Yafei Wang; Linfeng Yu; Jiayao Li; Junfang Lv; Xiaoyu Liu; Feng Liu; Jianhui Hou; Yongfang Li

doi:10.1039/d1ee03673d

An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells

Jianqiu Wang, Maojie Zhang^*, Ji Lin, Zhong Zheng, Lei Zhu, Pengqing Bi, Haiyan Liang, Xia Guo, Jingnan Wu, Yafei Wang, Linfeng Yu, Jiayao Li, Junfang Lv, Xiaoyu Liu, Feng Liu, Jianhui Hou, Yongfang Li

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

88 Citations (Scopus)

Abstract

Ternary and tandem strategies are effective methods for improving the photovoltaic performance of organic solar cells (OSCs). Here an asymmetric wide-bandgap nonfullerene acceptor named AITC is synthesized. AITC with a bandgap of 1.75 eV exhibits a good complementary absorption spectrum with the narrow bandgap acceptor BTP-eC9. AITC also shows good miscibility with BTP-eC9, which facilitates the formation of a stable mixing phase in blends. Moreover, the large dipole moment of AITC reinforces the molecular packing in the blend films of PM6 and BTP-eC9, thereby enhancing the photoconductivity, suppressing charge recombination and reducing nonradiative voltage loss in ternary OSCs. As a result, the ternary OSCs based on PM6:BTP-eC9:AITC achieve an outstanding power conversion efficiency (PCE) of 18.8%. In addition, tandem OSCs using PM6:AITC as a bottom subcell and the PM6:AITC:BTP-eC9 ternary active layer as a top subcell exhibit a remarkable efficiency of 19.4%, which is one of the highest PCEs in the field.

Original language	English
Journal	Energy and Environmental Science
Volume	15
Issue number	4
Pages (from-to)	1585-1593
Number of pages	9
ISSN	1754-5692
DOIs	https://doi.org/10.1039/d1ee03673d
Publication status	Published - 21 Feb 2022
Externally published	Yes

Bibliographical note

Funding Information:
This work was financially supported by the National Natural Science Foundation of China (NSFC) (51973146 and 51773142), the Jiangsu Provincial Natural Science Foundation (grant BK20190099), the Collaborative Innovation Center of Suzhou Nano Science & Technology, and the Priority Academic Program Development of Jiangsu Higher Education Institutions. J. H. would like to acknowledge the National Natural Science Foundation of China (NSFC, 21835006, 51961135103 and 51673201). Z. Z. would like to acknowledge the financial support from NSFC (51703041) and the Beijing National Laboratory for Molecular Sciences (BNLMS) Junior Fellowship.

Publisher Copyright:
© 2022 The Royal Society of Chemistry.

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Wang, J., Zhang, M., Lin, J., Zheng, Z., Zhu, L., Bi, P., Liang, H., Guo, X., Wu, J., Wang, Y., Yu, L., Li, J., Lv, J., Liu, X., Liu, F., Hou, J., & Li, Y. (2022). An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells. Energy and Environmental Science, 15(4), 1585-1593. https://doi.org/10.1039/d1ee03673d

@article{7ff4b81a914f424da737cb87b549ac00,

title = "An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells",

abstract = "Ternary and tandem strategies are effective methods for improving the photovoltaic performance of organic solar cells (OSCs). Here an asymmetric wide-bandgap nonfullerene acceptor named AITC is synthesized. AITC with a bandgap of 1.75 eV exhibits a good complementary absorption spectrum with the narrow bandgap acceptor BTP-eC9. AITC also shows good miscibility with BTP-eC9, which facilitates the formation of a stable mixing phase in blends. Moreover, the large dipole moment of AITC reinforces the molecular packing in the blend films of PM6 and BTP-eC9, thereby enhancing the photoconductivity, suppressing charge recombination and reducing nonradiative voltage loss in ternary OSCs. As a result, the ternary OSCs based on PM6:BTP-eC9:AITC achieve an outstanding power conversion efficiency (PCE) of 18.8%. In addition, tandem OSCs using PM6:AITC as a bottom subcell and the PM6:AITC:BTP-eC9 ternary active layer as a top subcell exhibit a remarkable efficiency of 19.4%, which is one of the highest PCEs in the field.",

author = "Jianqiu Wang and Maojie Zhang and Ji Lin and Zhong Zheng and Lei Zhu and Pengqing Bi and Haiyan Liang and Xia Guo and Jingnan Wu and Yafei Wang and Linfeng Yu and Jiayao Li and Junfang Lv and Xiaoyu Liu and Feng Liu and Jianhui Hou and Yongfang Li",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China (NSFC) (51973146 and 51773142), the Jiangsu Provincial Natural Science Foundation (grant BK20190099), the Collaborative Innovation Center of Suzhou Nano Science & Technology, and the Priority Academic Program Development of Jiangsu Higher Education Institutions. J. H. would like to acknowledge the National Natural Science Foundation of China (NSFC, 21835006, 51961135103 and 51673201). Z. Z. would like to acknowledge the financial support from NSFC (51703041) and the Beijing National Laboratory for Molecular Sciences (BNLMS) Junior Fellowship. Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry.",

year = "2022",

month = feb,

day = "21",

doi = "10.1039/d1ee03673d",

language = "English",

volume = "15",

pages = "1585--1593",

journal = "Energy and Environmental Science",

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Wang, J, Zhang, M, Lin, J, Zheng, Z, Zhu, L, Bi, P, Liang, H, Guo, X, Wu, J, Wang, Y, Yu, L, Li, J, Lv, J, Liu, X, Liu, F, Hou, J & Li, Y 2022, 'An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells', Energy and Environmental Science, vol. 15, no. 4, pp. 1585-1593. https://doi.org/10.1039/d1ee03673d

TY - JOUR

T1 - An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells

AU - Wang, Jianqiu

AU - Zhang, Maojie

AU - Lin, Ji

AU - Zheng, Zhong

AU - Zhu, Lei

AU - Bi, Pengqing

AU - Liang, Haiyan

AU - Guo, Xia

AU - Wu, Jingnan

AU - Wang, Yafei

AU - Yu, Linfeng

AU - Li, Jiayao

AU - Lv, Junfang

AU - Liu, Xiaoyu

AU - Liu, Feng

AU - Hou, Jianhui

AU - Li, Yongfang

N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China (NSFC) (51973146 and 51773142), the Jiangsu Provincial Natural Science Foundation (grant BK20190099), the Collaborative Innovation Center of Suzhou Nano Science & Technology, and the Priority Academic Program Development of Jiangsu Higher Education Institutions. J. H. would like to acknowledge the National Natural Science Foundation of China (NSFC, 21835006, 51961135103 and 51673201). Z. Z. would like to acknowledge the financial support from NSFC (51703041) and the Beijing National Laboratory for Molecular Sciences (BNLMS) Junior Fellowship. Publisher Copyright: © 2022 The Royal Society of Chemistry.

PY - 2022/2/21

Y1 - 2022/2/21

N2 - Ternary and tandem strategies are effective methods for improving the photovoltaic performance of organic solar cells (OSCs). Here an asymmetric wide-bandgap nonfullerene acceptor named AITC is synthesized. AITC with a bandgap of 1.75 eV exhibits a good complementary absorption spectrum with the narrow bandgap acceptor BTP-eC9. AITC also shows good miscibility with BTP-eC9, which facilitates the formation of a stable mixing phase in blends. Moreover, the large dipole moment of AITC reinforces the molecular packing in the blend films of PM6 and BTP-eC9, thereby enhancing the photoconductivity, suppressing charge recombination and reducing nonradiative voltage loss in ternary OSCs. As a result, the ternary OSCs based on PM6:BTP-eC9:AITC achieve an outstanding power conversion efficiency (PCE) of 18.8%. In addition, tandem OSCs using PM6:AITC as a bottom subcell and the PM6:AITC:BTP-eC9 ternary active layer as a top subcell exhibit a remarkable efficiency of 19.4%, which is one of the highest PCEs in the field.

AB - Ternary and tandem strategies are effective methods for improving the photovoltaic performance of organic solar cells (OSCs). Here an asymmetric wide-bandgap nonfullerene acceptor named AITC is synthesized. AITC with a bandgap of 1.75 eV exhibits a good complementary absorption spectrum with the narrow bandgap acceptor BTP-eC9. AITC also shows good miscibility with BTP-eC9, which facilitates the formation of a stable mixing phase in blends. Moreover, the large dipole moment of AITC reinforces the molecular packing in the blend films of PM6 and BTP-eC9, thereby enhancing the photoconductivity, suppressing charge recombination and reducing nonradiative voltage loss in ternary OSCs. As a result, the ternary OSCs based on PM6:BTP-eC9:AITC achieve an outstanding power conversion efficiency (PCE) of 18.8%. In addition, tandem OSCs using PM6:AITC as a bottom subcell and the PM6:AITC:BTP-eC9 ternary active layer as a top subcell exhibit a remarkable efficiency of 19.4%, which is one of the highest PCEs in the field.

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U2 - 10.1039/d1ee03673d

DO - 10.1039/d1ee03673d

M3 - Journal article

AN - SCOPUS:85127049775

SN - 1754-5692

VL - 15

SP - 1585

EP - 1593

JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 4

ER -

An asymmetric wide-bandgap acceptor simultaneously enabling highly efficient single-junction and tandem organic solar cells

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