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11.4% Efficiency non-fullerene polymer solar cells with trialkylsilyl substituted 2D-conjugated polymer as donor

Author

Listed:
  • Haijun Bin

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Liang Gao

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhi-Guo Zhang

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences)

  • Yankang Yang

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yindong Zhang

    (National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Chunfeng Zhang

    (National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Shanshan Chen

    (School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST))

  • Lingwei Xue

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences)

  • Changduk Yang

    (School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST))

  • Min Xiao

    (National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University
    Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Yongfang Li

    (Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University)

Abstract

Simutaneously high open circuit voltage and high short circuit current density is a big challenge for achieving high efficiency polymer solar cells due to the excitonic nature of organic semdonductors. Herein, we developed a trialkylsilyl substituted 2D-conjugated polymer with the highest occupied molecular orbital level down-shifted by Si–C bond interaction. The polymer solar cells obtained by pairing this polymer with a non-fullerene acceptor demonstrated a high power conversion efficiency of 11.41% with both high open circuit voltage of 0.94 V and high short circuit current density of 17.32 mA cm−2 benefitted from the complementary absorption of the donor and acceptor, and the high hole transfer efficiency from acceptor to donor although the highest occupied molecular orbital level difference between the donor and acceptor is only 0.11 eV. The results indicate that the alkylsilyl substitution is an effective way in designing high performance conjugated polymer photovoltaic materials.

Suggested Citation

  • Haijun Bin & Liang Gao & Zhi-Guo Zhang & Yankang Yang & Yindong Zhang & Chunfeng Zhang & Shanshan Chen & Lingwei Xue & Changduk Yang & Min Xiao & Yongfang Li, 2016. "11.4% Efficiency non-fullerene polymer solar cells with trialkylsilyl substituted 2D-conjugated polymer as donor," Nature Communications, Nature, vol. 7(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13651
    DOI: 10.1038/ncomms13651
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    Cited by:

    1. Yanan Shi & Yilin Chang & Kun Lu & Zhihao Chen & Jianqi Zhang & Yangjun Yan & Dingding Qiu & Yanan Liu & Muhammad Abdullah Adil & Wei Ma & Xiaotao Hao & Lingyun Zhu & Zhixiang Wei, 2022. "Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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