A-D-A-type electron acceptors based on pyrrole-containing ladder-type heteroarenes for organic solar cells

Yunlong Ma; Qingdong Zheng

doi:10.59717/j.xinn-mater.2023.100044

The Innovation Materials > 2023 Vol. 1 > No. 3 > 100044

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A-D-A-type electron acceptors based on pyrrole-containing ladder-type heteroarenes for organic solar cells

Yunlong Ma^1, ,,
Qingdong Zheng^2, ,

1.
State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2.
State Key Laboratory of Coordination Chemistry, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210023, China

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Corresponding authors: mayunlong@fjirsm.ac.cn (Y. M.); zhengqd@nju.edu.cn (Q. Z.)
Received Date: October 17, 2023

Accepted Date: December 08, 2023

Published Online: December 11, 2023

The Innovation Materials 1(3), https://doi.org/10.59717/j.xinn-mater.2023.100044 | Cite this article

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PUBLIC SUMMARY

PUBLIC SUMMARY
1. Pyrrole-containing fused-ring electron acceptors for photovoltaics are reviewed.
  
  Synthetic strategies for pyrrole-based ladder-type heteroarenes are summarized.
  
  Structure-performance relationships are discussed.
  
  Remaining challenges and key research directions are proposed.

ABSTRACT

ABSTRACT

Organic solar cells (OSCs) have undergone rapid development and achieved significant breakthroughs in power conversion efficiencies, largely due to the emergence of nonfullerene acceptors (NFAs) with ladder-type multifused-ring structures. Over the past few years, huge efforts have been devoted to synthesizing new ladder-type donor cores via rational molecular design, as it can directly dictate most of the OSC-related physicochemical and optoelectronic properties of NFAs. Among the numerous reported ladder-type donor cores with diverse chemical structures, those containing pyrrole rings are becoming the preferred building blocks for the development of high-performance NFAs due to their intriguing physicochemical properties and unique molecular stacking. To date, most of the state-of-the-art NFAs (e.g., Y-series and M-series acceptors) use pyrrole-containing ladder-type heteroarenes as the donor cores. In this review, we summarize acceptor-donor-acceptor (A-D-A)-type NFAs based on pyrrole-containing ladder-type heteroarenes with detailed discussion of the relationships between molecular structures and device performance. We also provide a brief summary of common synthetic strategies for pyrrole-containing ladder-type heteroarenes. Finally, the remaining challenges and the key research directions in the near future are proposed in the hope of providing some useful insights for the further rational design of novel pyrrole-containing ladder-type building blocks and corresponding high-performance NFA materials.

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Ma Y. and Zheng Q. (2023). A-D-A-type electron acceptors based on pyrrole-containing ladder-type heteroarenes for organic solar cells. The Innovation Materials 1(3), 100044. https://doi.org/10.59717/j.xinn-mater.2023.100044

Ma Y. and Zheng Q. (2023). A-D-A-type electron acceptors based on pyrrole-containing ladder-type heteroarenes for organic solar cells. The Innovation Materials 1(3), 100044. https://doi.org/10.59717/j.xinn-mater.2023.100044

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