Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells
Abstract
Abstract A new weak electron‐deficient building block, bis(2‐ethylhexyl) 2,5‐bis(5‐bromothiophen‐2‐yl) thieno[3,2‐ b ]thiophene‐3,6‐dicarboxylate ( TT‐Th ), is incorporated to construct a wide‐bandgap (1.88 eV) polymer PBDT‐TT for nonfullerene polymer solar cells (NF‐PSCs). PBDT‐TT possesses suitable energy levels and complementary absorption when blended with both ITIC analogues ( ITIC and IT‐M ) and a near‐infrared (NIR) acceptor ( 6TIC ). Moreover, PBDT‐TT exhibits good conjugated planarity and preferable face‐on orientation in the blended thin film, which are beneficial for charge transfer and carrier transport. The PSCs based on PBDT‐TT : IT‐M and PBDT‐TT : 6TIC blend films yield high power conversion efficiencies of 11.38% and 11.03%, respectively. To the best of the authors' knowledge, the PCE of 11.03% for PBDT‐TT : 6TIC‐ based device is one of the highest values reported for NIR NF‐PSCs. This work demonstrates that TT‐Th is a useful new electron‐accepting building block for making p‐type wide bandgap polymers for efficient NIR NF‐PSCs.
- Authors:
-
[2];
[5]
- Department of Materials Science and Engineering University of Washington Seattle WA 98195‐2120 USA, Institute of Polymers College of Chemistry Nanchang University Nanchang 330031 China
- Department of Materials Science and Engineering University of Washington Seattle WA 98195‐2120 USA
- Institute of Polymers College of Chemistry Nanchang University Nanchang 330031 China
- Department of Physics and Astronomy Shanghai Jiaotong University Shanghai 200240 China
- Department of Materials Science and Engineering University of Washington Seattle WA 98195‐2120 USA, Department of Chemistry and Department of Materials Science &, Engineering City University of Hong Kong Kowloon 999077 Hong Kong
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1457092
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Advanced Energy Materials
- Additional Journal Information:
- Journal Name: Advanced Energy Materials Journal Volume: 8 Journal Issue: 24; Journal ID: ISSN 1614-6832
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Liao, Xunfan, Yao, Zhaoyang, Gao, Ke, Shi, Xueliang, Zuo, Lijian, Zhu, Zonglong, Chen, Lie, Liu, Feng, Chen, Yiwang, and Jen, Alex K. ‐Y. Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells. Germany: N. p., 2018.
Web. doi:10.1002/aenm.201801214.
Liao, Xunfan, Yao, Zhaoyang, Gao, Ke, Shi, Xueliang, Zuo, Lijian, Zhu, Zonglong, Chen, Lie, Liu, Feng, Chen, Yiwang, & Jen, Alex K. ‐Y. Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells. Germany. https://doi.org/10.1002/aenm.201801214
Liao, Xunfan, Yao, Zhaoyang, Gao, Ke, Shi, Xueliang, Zuo, Lijian, Zhu, Zonglong, Chen, Lie, Liu, Feng, Chen, Yiwang, and Jen, Alex K. ‐Y. Mon .
"Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells". Germany. https://doi.org/10.1002/aenm.201801214.
@article{osti_1457092,
title = {Mapping Nonfullerene Acceptors with a Novel Wide Bandgap Polymer for High Performance Polymer Solar Cells},
author = {Liao, Xunfan and Yao, Zhaoyang and Gao, Ke and Shi, Xueliang and Zuo, Lijian and Zhu, Zonglong and Chen, Lie and Liu, Feng and Chen, Yiwang and Jen, Alex K. ‐Y.},
abstractNote = {Abstract A new weak electron‐deficient building block, bis(2‐ethylhexyl) 2,5‐bis(5‐bromothiophen‐2‐yl) thieno[3,2‐ b ]thiophene‐3,6‐dicarboxylate ( TT‐Th ), is incorporated to construct a wide‐bandgap (1.88 eV) polymer PBDT‐TT for nonfullerene polymer solar cells (NF‐PSCs). PBDT‐TT possesses suitable energy levels and complementary absorption when blended with both ITIC analogues ( ITIC and IT‐M ) and a near‐infrared (NIR) acceptor ( 6TIC ). Moreover, PBDT‐TT exhibits good conjugated planarity and preferable face‐on orientation in the blended thin film, which are beneficial for charge transfer and carrier transport. The PSCs based on PBDT‐TT : IT‐M and PBDT‐TT : 6TIC blend films yield high power conversion efficiencies of 11.38% and 11.03%, respectively. To the best of the authors' knowledge, the PCE of 11.03% for PBDT‐TT : 6TIC‐ based device is one of the highest values reported for NIR NF‐PSCs. This work demonstrates that TT‐Th is a useful new electron‐accepting building block for making p‐type wide bandgap polymers for efficient NIR NF‐PSCs.},
doi = {10.1002/aenm.201801214},
journal = {Advanced Energy Materials},
number = 24,
volume = 8,
place = {Germany},
year = {Mon Jun 25 00:00:00 EDT 2018},
month = {Mon Jun 25 00:00:00 EDT 2018}
}
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