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Polymer semiconductor blends with remarkably stable semiconducting performance under large and cyclic mechanical deformation

Author

Listed:
  • Chenying Gao

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

  • Kaiyuan Chenchai

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

  • Lin Huang

    (RIKEN Center for Sustainable Resource Science, Advanced Catalysis Research Group)

  • Cheng Li

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

  • Xisha Zhang

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

  • Guanxin Zhang

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

  • Jingjing Shao

    (RIKEN Center for Sustainable Resource Science, Advanced Catalysis Research Group)

  • Haoran Zhang

    (RIKEN Center for Sustainable Resource Science, Advanced Catalysis Research Group)

  • Guoming Liu

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

  • Zhaomin Hou

    (RIKEN Center for Sustainable Resource Science, Advanced Catalysis Research Group)

  • Deqing Zhang

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

Abstract

In this paper, we report deformable blend thin films of polymer semiconductors with PDPPTT (p-type) and N2200 (n-type) as the examples by using the hydrogenated polyisoprene (H-PIP) as the newly developed elastomer. As compared to the respective blends with other elastomers, the blends with H-PIP bear lower elastic moduli and higher crack on-set strains, and in particular exhibit remarkably stable semiconducting performance under large and cyclic mechanical deformations. This aligns with the observation that the assembly structures of polymer semiconductors are stable within the H-PIP matrix based on AFM and GIWAXS characterizations. This exceptional performance is attributed to the unique structure of H-PIP, which is solely composed of mobile aliphatic-hydrocarbon chains without chemical/physical crosslinks. This enables the blend thin films with H-PIP to follow the mechanical deformations of the substrate without generating internal stress and affecting the interconnected assembly networks of the polymer semiconductor, thus leading to stable semiconducting performance.

Suggested Citation

  • Chenying Gao & Kaiyuan Chenchai & Lin Huang & Cheng Li & Xisha Zhang & Guanxin Zhang & Jingjing Shao & Haoran Zhang & Guoming Liu & Zhaomin Hou & Deqing Zhang, 2025. "Polymer semiconductor blends with remarkably stable semiconducting performance under large and cyclic mechanical deformation," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-65327-5
    DOI: 10.1038/s41467-025-65327-5
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