Asymmetrical Ladder-Type Donor-Induced Polar Small Molecule Acceptor to Promote Fill Factors Approaching 77% for High-Performance Nonfullerene Polymer Solar Cells

Wei Gao; Miao Zhang; Tao Liu; Ruijie Ming; Qiaoshi An; Kailong Wu; Dongjun Xie; Zhenghui Luo; Cheng Zhong; Feng Liu; Fujun Zhang; He Yan; Chuluo Yang

doi:10.1002/adma.201800052

Asymmetrical Ladder-Type Donor-Induced Polar Small Molecule Acceptor to Promote Fill Factors Approaching 77% for High-Performance Nonfullerene Polymer Solar Cells

Wei Gao, Miao Zhang, Tao Liu, Ruijie Ming, Qiaoshi An, Kailong Wu, Dongjun Xie, Zhenghui Luo, Cheng Zhong, Feng Liu^*, Fujun Zhang, He Yan, Chuluo Yang

^*Corresponding author for this work

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

260 Citations (Scopus)

Abstract

In this work, an effectual strategy of constructing polar small molecule acceptors (SMAs) to promote fill factor (FF) of nonfullerene polymer solar cells (PSCs) is first reported. Three asymmetrical SMAs of IDT6CN, IDT6CN-Th, and IDT6CN-M, which own large dipole moments, are designed and synthesized. The PSCs based on three polar SMAs exhibit apparently higher FFs compared with their symmetrical analogues. The asymmetrical design strategy accompanied with side chain and end group engineering makes IDT6CN-Th- and IDT6CN-M-based nonfullerene PSCs achieve high power conversion efficiency with FFs approaching 77%.

Original language	English
Article number	1800052
Journal	Advanced Materials
Volume	30
Issue number	26
DOIs	https://doi.org/10.1002/adma.201800052
Publication status	Published - 27 Jun 2018
Externally published	Yes

Keywords

asymmetrical molecule
high fill factor
nonfullerene polymer solar cell
small molecule acceptor

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10.1002/adma.201800052

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Gao, W., Zhang, M., Liu, T., Ming, R., An, Q., Wu, K., Xie, D., Luo, Z., Zhong, C., Liu, F., Zhang, F., Yan, H., & Yang, C. (2018). Asymmetrical Ladder-Type Donor-Induced Polar Small Molecule Acceptor to Promote Fill Factors Approaching 77% for High-Performance Nonfullerene Polymer Solar Cells. Advanced Materials, 30(26), Article 1800052. https://doi.org/10.1002/adma.201800052

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abstract = "In this work, an effectual strategy of constructing polar small molecule acceptors (SMAs) to promote fill factor (FF) of nonfullerene polymer solar cells (PSCs) is first reported. Three asymmetrical SMAs of IDT6CN, IDT6CN-Th, and IDT6CN-M, which own large dipole moments, are designed and synthesized. The PSCs based on three polar SMAs exhibit apparently higher FFs compared with their symmetrical analogues. The asymmetrical design strategy accompanied with side chain and end group engineering makes IDT6CN-Th- and IDT6CN-M-based nonfullerene PSCs achieve high power conversion efficiency with FFs approaching 77%.",

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author = "Wei Gao and Miao Zhang and Tao Liu and Ruijie Ming and Qiaoshi An and Kailong Wu and Dongjun Xie and Zhenghui Luo and Cheng Zhong and Feng Liu and Fujun Zhang and He Yan and Chuluo Yang",

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AU - Gao, Wei

AU - Zhang, Miao

AU - Liu, Tao

AU - Ming, Ruijie

AU - An, Qiaoshi

AU - Wu, Kailong

AU - Xie, Dongjun

AU - Luo, Zhenghui

AU - Zhong, Cheng

AU - Liu, Feng

AU - Zhang, Fujun

AU - Yan, He

AU - Yang, Chuluo

PY - 2018/6/27

Y1 - 2018/6/27

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AB - In this work, an effectual strategy of constructing polar small molecule acceptors (SMAs) to promote fill factor (FF) of nonfullerene polymer solar cells (PSCs) is first reported. Three asymmetrical SMAs of IDT6CN, IDT6CN-Th, and IDT6CN-M, which own large dipole moments, are designed and synthesized. The PSCs based on three polar SMAs exhibit apparently higher FFs compared with their symmetrical analogues. The asymmetrical design strategy accompanied with side chain and end group engineering makes IDT6CN-Th- and IDT6CN-M-based nonfullerene PSCs achieve high power conversion efficiency with FFs approaching 77%.

KW - asymmetrical molecule

KW - high fill factor

KW - nonfullerene polymer solar cell

KW - small molecule acceptor

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ER -

Asymmetrical Ladder-Type Donor-Induced Polar Small Molecule Acceptor to Promote Fill Factors Approaching 77% for High-Performance Nonfullerene Polymer Solar Cells

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Keywords

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