journal article·2025-10Open access

π‐Extension Assisted Macrocycle‐Encapsulated Non‐Fused Ring Electron Acceptors with Dual Charge Transporting Pathways for High‐Performance Organic Solar Cells

Shuaishuai Shen, Wenjing Liu, Hao Lu, Wenjun Zhang, Feixiang Zhao, Bin Hu, Zhaochen Suo, Kexin Zhao, Jingjing Deng, Yu Mi, Shijin Yuan, Zhiying Ma, Yu Chen, Yahui Liu, Zaifei Ma, Guanghao Lu, Xiangjian Wan, Zhishan Bo, Jinsheng Song

Advanced Functional Materials· Volume 35· Issue 44

Abstract

Abstract Achieving compact and ordered charge transfer channels is essential for high‐performance non‐fused ring electron acceptors (NFREAs). Herein, this is demonstrated that how the stacking arrangement of non‐fused ring molecules with macrocycle encapsulated can be regulated via π‐extension, thus resulting in nearly planar molecular backbones, more compact and ordered electron transfer channels with dual transport characteristics. In RTT‐TT‐4F , these pronounced aggregation features endow its blend film with appropriate phase separation, thereby reducing charge recombination, balancing charge carrier mobilities, and significantly lowering energy loss in OSCs. Consequently, RTT‐TT‐4F ‐based OSCs achieve remarkable power conversion efficiencies of 14.45% and 19.76% in binary and ternary devices, respectively. Our findings provide essential insights into the development of high‐performance NFREAs for OSC applications.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China

College of Materials Science and Engineering Qingdao University Qingdao 266071 China

State Key Laboratory for Modification of Chemical Fibers and Polymer Material Center for Advanced Low‐Dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China

Frontier Institute of Science and Technology and State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710054 China

State Key Laboratory and Institute of Elemento‐Organic Chemistry The Centre of Nanoscale Science and Technology Key Laboratory of Functional Polymer Materials Renewable Energy Conversion and Storage Center (RECAST) College of Chemistry Nankai University Tianjin 300071 China

Institute of High Energy Physics Chinese Academy of Sciences Mailing address 19B Yuquan Road Shijingshan District Beijing 71035 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Henan Province · Foundation of Henan Educational Committee

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