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Efficient and thermally stable organic solar cells based on small molecule donor and polymer acceptor

Author

Listed:
  • Zijian Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Junhui Miao

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Zicheng Ding

    (Chinese Academy of Sciences)

  • Bin Kan

    (Nankai University)

  • Baojun Lin

    (Xi’an Jiaotong University)

  • Xiangjian Wan

    (Nankai University)

  • Wei Ma

    (Xi’an Jiaotong University)

  • Yongsheng Chen

    (Nankai University)

  • Xiaojing Long

    (Chinese Academy of Sciences)

  • Chuandong Dou

    (Chinese Academy of Sciences)

  • Jidong Zhang

    (Chinese Academy of Sciences)

  • Jun Liu

    (Chinese Academy of Sciences)

  • Lixiang Wang

    (Chinese Academy of Sciences)

Abstract

Efficient organic solar cells (OSCs) often use combination of polymer donor and small molecule acceptor. Herein we demonstrate efficient and thermally stable OSCs with combination of small molecule donor and polymer acceptor, which is expected to expand the research field of OSCs. Typical small molecule donors show strong intermolecular interactions and high crystallinity, and consequently do not match polymer acceptors because of large-size phase separation. We develop a small molecule donor with suppressed π-π stacking between molecular backbones by introducing large steric hindrance. As the result, the OSC exhibits small-size phase separation in the active layer and shows a power conversion efficiency of 8.0%. Moreover, this OSC exhibits much improved thermal stability, i.e. maintaining 89% of its initial efficiency after thermal annealing the active layer at 180 °C for 7 days. These results indicate a different kind of efficient and stable OSCs.

Suggested Citation

  • Zijian Zhang & Junhui Miao & Zicheng Ding & Bin Kan & Baojun Lin & Xiangjian Wan & Wei Ma & Yongsheng Chen & Xiaojing Long & Chuandong Dou & Jidong Zhang & Jun Liu & Lixiang Wang, 2019. "Efficient and thermally stable organic solar cells based on small molecule donor and polymer acceptor," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10984-6
    DOI: 10.1038/s41467-019-10984-6
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    Cited by:

    1. Muhammad Azhar Ansari & Giovanni Ciampi & Sergio Sibilio, 2024. "Novel Materials for Semi-Transparent Organic Solar Cells," Energies, MDPI, vol. 17(2), pages 1-15, January.

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