Binary Organic Solar Cells with 19.2% Efficiency Enabled by Solid Additive

DOI Web Site 被引用文献2件
  • Jianqiu Wang
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Yafei Wang
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Pengqing Bi
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Zhihao Chen
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Jiawei Qiao
    School of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China
  • Jiayao Li
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Wenxuan Wang
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Zhong Zheng
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Shaoqing Zhang
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
  • Xiaotao Hao
    School of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China
  • Jianhui Hou
    State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

書誌事項

公開日
2023-05
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/adma.202301583
公開者
Wiley

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説明

<jats:title>Abstract</jats:title><jats:p>Morphology optimization is critical for achieving high efficiency and stable bulk‐heterojunction (BHJ) organic solar cells (OSCs). Herein, the use of 3,5‐dichlorobromobenzene (DCBB) with high volatility and low cost to manipulate evolution of the BHJ morphology and improve the operability and photostability of OSCs is proposed. Systematic simulations reveal the charge distribution of DCBB and its non‐covalent interaction with the active layer materials. The addition of DCBB can effectively tune the aggregation of PBQx‐TF:eC9‐2Cl during film formation, resulting in a favorable phase separation and a reinforced molecular packing. As a result, a power conversion efficiency of 19.2% (certified as 19.0% by the National Institute of Metrology) for DCBB‐processed PBQx‐TF:eC9‐2Cl‐based OSCs, which is the highest reported value for binary OSCs, is obtained. Importantly, the DCBB‐processed devices exhibit superior photostability and have thus considerable application potential in the printing of large‐area devices, demonstrating outstanding universality in various BHJ systems. The study provides a facile approach to control the BHJ morphology and enhances the photovoltaic performance of OSCs.</jats:p>

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