Quinoxaline-based Polymers with Asymmetric Aromatic Side Chain Enables 16.27% Efficiency for Organic Solar Cells

Dong-Xu Li; Shu-Fang Li; Cheng-Long Wen; Chao-Yuan Sun; Chang-Zhou Shi; Xin-Xin Xia; Xin-Hui Lu; Li-Hui Jiang; Jun Yuan; Ying-Ping Zou

doi:10.1007/s10118-023-2895-5

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Quinoxaline-based Polymers with Asymmetric Aromatic Side Chain Enables 16.27% Efficiency for Organic Solar Cells

RESEARCH ARTICLE | Updated：2023-06-14

- Quinoxaline-based Polymers with Asymmetric Aromatic Side Chain Enables 16.27% Efficiency for Organic Solar Cells
- Chinese Journal of Polymer Science Vol. 41, Issue 7, Pages: 1002-1010(2023)
- Affiliations：
  
  a.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
  b.Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong 999077, China
- Author bio：
  
  junyuan@csu.edu.cn (J.Y.)
  yingpingzou@csu.edu.cn (Y.P.Z.)
- Funds：
- DOI：10.1007/s10118-023-2895-5
  CLC：
- Received：02 October 2022，
  
  Revised：2022-10-22，
  
  Accepted：31 October 2022，
  
  Online First：29 December 2022，
  
  Published：01 July 2023
- Accepted：
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Li, D. X.; Li, S. F.; Wen, C. L.; Sun, C. Y.; Shi, C. Z.; Xia, X. X.; Lu, X. H.; Jiang, L. H.; Yuan, J.; Zou, Y. P. Quinoxaline-based polymers with asymmetric aromatic side chain enables 16.27% efficiency for organic solar cells. Chinese J. Polym. Sci. 2023, 41, 1002–1010

Dong-Xu Li, Shu-Fang Li, Cheng-Long Wen, et al. Quinoxaline-based Polymers with Asymmetric Aromatic Side Chain Enables 16.27% Efficiency for Organic Solar Cells[J]. Chinese Journal of Polymer Science, 2023, 41(7): 1002-1010.
Li, D. X.; Li, S. F.; Wen, C. L.; Sun, C. Y.; Shi, C. Z.; Xia, X. X.; Lu, X. H.; Jiang, L. H.; Yuan, J.; Zou, Y. P. Quinoxaline-based polymers with asymmetric aromatic side chain enables 16.27% efficiency for organic solar cells. Chinese J. Polym. Sci. 2023, 41, 1002–1010 DOI： 10.1007/s10118-023-2895-5.

Dong-Xu Li, Shu-Fang Li, Cheng-Long Wen, et al. Quinoxaline-based Polymers with Asymmetric Aromatic Side Chain Enables 16.27% Efficiency for Organic Solar Cells[J]. Chinese Journal of Polymer Science, 2023, 41(7): 1002-1010. DOI： 10.1007/s10118-023-2895-5.

摘要

Four quinoxaline-based polymer donors with asymmetric aromatic side chain

TPQ-0F

TPQ-1F

TPQ-1Fi

and TPQ-2F were designed and synthesized. The binary OSC based on TPQ-2F and Y6 achieved an efficient PCE of 16.27 %

which was attributed to balanced hole/electron mobilities

less charge carrier recombination

better excitondissociation and charge transport

and more favorable morphology.

Abstract

In recent years

due to the rapid development of high-performance small molecule acceptor (SMA) materials

the researches on

-type electron donor materials for matching with current efficient SMAs have become important. By means of asymmetric strategies to optimize the energy levels and inter/intramolecular interactions of molecules

we designed and synthesized an asymmetric aromatic side chain quinoxaline-based polymer donor TPQ-0F. Meanwhile

we took advantage of F atom which could form noncovalent interaction and strong electron-withdrawing property

to obtain the optimized quinoxaline-based polymer donors TPQ-1F

TPQ-1Fi and TPQ-2F. Eventually

the binary device based on TPQ-2F achieved an efficient power conversion efficiency (PCE) of 16.27%

which attributed to balanced hole/electron mobilities

less charge carrier recombination

and more favorable aggregation morphology. Our work demonstrates the great potential of asymmetric aromatic side chain quinoxaline-based polymer donors on optimizing the morphology of blending films

improving inter/intramolecular interactions

and subtly tuning energy level

finally for more efficient organic solar cells.

关键词

Keywords

references

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