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Intrinsically stretchable fully π-conjugated polymers with inter-aggregate capillary interaction for deep-blue flexible inkjet-printed light-emitting diodes

Author

Listed:
  • Mingjian Ni

    (Nanjing Tech University (NanjingTech)
    Xiamen University)

  • Zhiqiang Zhuo

    (Nanjing Tech University (NanjingTech))

  • Bin Liu

    (Henan University)

  • Xu Han

    (Xiamen University)

  • Jing Yang

    (Nanjing Tech University (NanjingTech))

  • Lili Sun

    (Sun Yat-sen University)

  • Yuekuan Yang

    (Xiamen University)

  • Jiangli Cai

    (Henan University)

  • Xiang An

    (Nanjing Tech University (NanjingTech))

  • Lubing Bai

    (Nanjing Tech University (NanjingTech))

  • Man Xu

    (Nanjing University of Posts & Telecommunications)

  • Jinyi Lin

    (Nanjing Tech University (NanjingTech)
    Jiangsu University)

  • Quanyou Feng

    (Nanjing University of Posts & Telecommunications)

  • Guohua Xie

    (Xiamen University)

  • Yutong Wu

    (Nanjing Tech University (NanjingTech))

  • Wei Huang

    (Nanjing Tech University (NanjingTech)
    Xiamen University
    Henan University
    Sun Yat-sen University)

Abstract

Fully π-conjugated polymers consisting of plane and rigid aromatic units present a fantastic optoelectronic property, a promising candidate for printed and flexible optoelectronic devices. However, obtaining high-performance conjugated polymers with an excellent intrinsically flexible and printable capacity is a great challenge due to their inherent coffee-ring effect and brittle properties. Here, we report an asymmetric substitution strategy to improve the printable and stretchable properties of deep-blue light-emitting conjugated polymers with a strong inter-aggregate capillary interaction for flexible printed polymer light-emitting diodes. The loose rod-shaped stacking of asymmetric conjugated polymers chain in the precursor printed ink makes it easier to improve the intrinsic stretchability of inkjet-printed films. More interestingly, the anisotropic shape rod-like aggregate of conjugated polymers chains also induced a strong capillary interaction and further suppressed the coffee-ring effect, which is more likely to allow for uniform deposition during printed processing and form uniform printed films.

Suggested Citation

  • Mingjian Ni & Zhiqiang Zhuo & Bin Liu & Xu Han & Jing Yang & Lili Sun & Yuekuan Yang & Jiangli Cai & Xiang An & Lubing Bai & Man Xu & Jinyi Lin & Quanyou Feng & Guohua Xie & Yutong Wu & Wei Huang, 2025. "Intrinsically stretchable fully π-conjugated polymers with inter-aggregate capillary interaction for deep-blue flexible inkjet-printed light-emitting diodes," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-024-55494-2
    DOI: 10.1038/s41467-024-55494-2
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    References listed on IDEAS

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    1. Zhitao Zhang & Weichen Wang & Yuanwen Jiang & Yi-Xuan Wang & Yilei Wu & Jian-Cheng Lai & Simiao Niu & Chengyi Xu & Chien-Chung Shih & Cheng Wang & Hongping Yan & Luke Galuska & Nathaniel Prine & Hung-, 2022. "High-brightness all-polymer stretchable LED with charge-trapping dilution," Nature, Nature, vol. 603(7902), pages 624-630, March.
    2. Xiaodan Gu & Leo Shaw & Kevin Gu & Michael F. Toney & Zhenan Bao, 2018. "The meniscus-guided deposition of semiconducting polymers," Nature Communications, Nature, vol. 9(1), pages 1-16, December.
    3. Peter J. Yunker & Tim Still & Matthew A. Lohr & A. G. Yodh, 2011. "Suppression of the coffee-ring effect by shape-dependent capillary interactions," Nature, Nature, vol. 476(7360), pages 308-311, August.
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