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Reducing aggregation caused quenching effect through co-assembly of PAH chromophores and molecular barriers

Author

Listed:
  • Yinjuan Huang

    (Nanyang Technological University)

  • Jie Xing

    (Chinese Academy of Sciences)

  • Qiuyu Gong

    (National University of Singapore)

  • Li-Chuan Chen

    (Lanzhou University)

  • Guangfeng Liu

    (Nanyang Technological University)

  • Changjiang Yao

    (Nanyang Technological University)

  • Zongrui Wang

    (Nanyang Technological University)

  • Hao-Li Zhang

    (Lanzhou University)

  • Zhong Chen

    (Nanyang Technological University)

  • Qichun Zhang

    (Nanyang Technological University)

Abstract

The features of well-conjugated and planar aromatic structures make π-conjugated luminescent materials suffer from aggregation caused quenching (ACQ) effect when used in solid or aggregated states, which greatly impedes their applications in optoelectronic devices and biological applications. Herein, we reduce the ACQ effect by demonstrating a facile and low cost method to co-assemble polycyclic aromatic hydrocarbon (PAH) chromophores and octafluoronaphthalene together. Significantly, the solid photoluminescence quantum yield (PLQYs) for the as-resulted four micro/nanococrystals are enhanced by 254%, 235%, 474 and 582%, respectively. Protection from hydrophilic polymer chains (P123 (PEO20-PPO70-PEO20)) endows the cocrystals with superb dispersibility in water. More importantly, profiting from the above-mentioned highly improved properties, nano-cocrystals present good biocompatibility and considerable cell imaging performance. This research provides a simple method to enhance the emission, biocompatibility and cellular permeability of common chromophores, which may open more avenues for the applications of originally non- or poor fluorescent PAHs.

Suggested Citation

  • Yinjuan Huang & Jie Xing & Qiuyu Gong & Li-Chuan Chen & Guangfeng Liu & Changjiang Yao & Zongrui Wang & Hao-Li Zhang & Zhong Chen & Qichun Zhang, 2019. "Reducing aggregation caused quenching effect through co-assembly of PAH chromophores and molecular barriers," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-018-08092-y
    DOI: 10.1038/s41467-018-08092-y
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    Cited by:

    1. Jianyu Zhang & Yujie Tu & Hanchen Shen & Jacky W. Y. Lam & Jianwei Sun & Haoke Zhang & Ben Zhong Tang, 2023. "Regulating the proximity effect of heterocycle-containing AIEgens," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Jiehao Fu & Patrick W. K. Fong & Heng Liu & Chieh-Szu Huang & Xinhui Lu & Shirong Lu & Maged Abdelsamie & Tim Kodalle & Carolin M. Sutter-Fella & Yang Yang & Gang Li, 2023. "19.31% binary organic solar cell and low non-radiative recombination enabled by non-monotonic intermediate state transition," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Debasish Barman & Mari Annadhasan & Anil Parsram Bidkar & Pachaiyappan Rajamalli & Debika Barman & Siddhartha Sankar Ghosh & Rajadurai Chandrasekar & Parameswar Krishnan Iyer, 2023. "Highly efficient color-tunable organic co-crystals unveiling polymorphism, isomerism, delayed fluorescence for optical waveguides and cell-imaging," Nature Communications, Nature, vol. 14(1), pages 1-17, December.
    4. Zhen Wang & Yu Guo & Xianzhao Liu & Wenchao Shu & Guangchao Han & Kan Ding & Subhrangsu Mukherjee & Nan Zhang & Hin-Lap Yip & Yuanping Yi & Harald Ade & Philip C. Y. Chow, 2024. "The role of interfacial donor–acceptor percolation in efficient and stable all-polymer solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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