Pendant Y-series Acceptors with Well-controlled Morphology Enabled High Performance and Stability All-polymer Solar Cells

Hao-Yong Shi; Lu Xing; Ming-Xia Chen; Zhi-Yi Chen; Ming-Wei Deng; Lin-Yong Xu; Xiao-Hei Wu; Xin-Rong Yang; Yi-Ming Shao; Elizaveta D. Papkovskaya; Yuriy Luponosov; Rui Sun; Jie Min

doi:10.1007/s10118-025-3367-x

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Pendant Y-series Acceptors with Well-controlled Morphology Enabled High Performance and Stability All-polymer Solar Cells

RESEARCH ARTICLE | Updated：2025-08-25

- Pendant Y-series Acceptors with Well-controlled Morphology Enabled High Performance and Stability All-polymer Solar Cells
- Chinese Journal of Polymer Science Vol. 43, Issue 9, Pages: 1516-1526(2025)
- Affiliations：
  
  a.The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
  b.Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Moscow 117393, Russia
- Author bio：
  
  sun.rui@whu.edu.cn (R.S.)
  min.jie@whu.edu.cn (J.M.)
- Funds：
- DOI：10.1007/s10118-025-3367-x
  CLC：
- Received：06 March 2025，
  
  Revised：24 April 2025，
  
  Accepted：27 April 2025，
  
  Published Online：10 July 2025，
  
  Published：05 September 2025
- Accepted：
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Shi, H. Y.; Xing, L.; Chen, M. X.; Chen, Z. Y.; Deng, M. W.; Xu, L. Y.; Wu, X. H.; Yang, X. R.; Shao, Y. M.; Papkovskaya, E. D.; Luponosov, Y.; Sun, R.; Min, J. Pendant y-series acceptors with well-controlled morphology enabled high performance and stability all-polymer solar cells. Chinese J. Polym. Sci. 2025, 43, 1516–1526

Hao-Yong Shi, Lu Xing, Ming-Xia Chen, et al. Pendant Y-series Acceptors with Well-controlled Morphology Enabled High Performance and Stability All-polymer Solar Cells[J]. Chinese journal of polymer science, 2025, 43(9): 1516-1526.
Shi, H. Y.; Xing, L.; Chen, M. X.; Chen, Z. Y.; Deng, M. W.; Xu, L. Y.; Wu, X. H.; Yang, X. R.; Shao, Y. M.; Papkovskaya, E. D.; Luponosov, Y.; Sun, R.; Min, J. Pendant y-series acceptors with well-controlled morphology enabled high performance and stability all-polymer solar cells. Chinese J. Polym. Sci. 2025, 43, 1516–1526 DOI： 10.1007/s10118-025-3367-x.

Hao-Yong Shi, Lu Xing, Ming-Xia Chen, et al. Pendant Y-series Acceptors with Well-controlled Morphology Enabled High Performance and Stability All-polymer Solar Cells[J]. Chinese journal of polymer science, 2025, 43(9): 1516-1526. DOI： 10.1007/s10118-025-3367-x.

摘要

A new polymer acceptor featuring with Y-derivative pendants is designed to effectively enhance donor/acceptor compatibility and optimize blend morphology

enabling the fabrication of high-performance binary all-polymer solar cells with improved thermal stability.

Abstract

Polymer acceptor configuration and aggregation behavior are critical in determining the photovoltaic performance of all-polymer solar cells (all-PSCs). Effectively manipulating polymer self-aggregation through structural design to optimize the blend morphology remains challenging. Herein

we present a simple yet effective design strategy to modulate the aggregation behavior of the Y-series-based polymer acceptor PY-V-

by introducing a pendant-fluorinated Y-series acceptor (Y2F-ET) into the main-conjugated backbone. Two random copolymer acceptors (PY-EY-5 and PY-EY-20) were synthesized with varying molar fractions of Y2F-ET pendant monomers. Our findings revealed that both the solution-phase and solid-state aggregation behaviors were progressively suppressed as the Y2F-ET content increased. Compared to the highly self-aggregating PY-V-

-based all-PSCs

the more amorphous PY-EY-5 enabled devices to achieve an increased device efficiency from 17.31% to 18.45%

which is attributed to the slightly smaller polymer phase-separation domain sizes and reduced molecular aggregation in the PM6:PY-EY-5 blend. Moreover

the finely tuned blend morphology exhibited superior thermal stability

underscoring the significant advantages of the Y-series pendant random copolymerization approach.

关键词

Keywords

references

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