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Modulating the hierarchical fibrous assembly of Au nanoparticles with atomic precision

Author

Listed:
  • Qi Li

    (Carnegie Mellon University)

  • Jake C. Russell

    (Columbia University)

  • Tian-Yi Luo

    (University of Pittsburgh)

  • Xavier Roy

    (Columbia University)

  • Nathaniel L. Rosi

    (University of Pittsburgh)

  • Yan Zhu

    (Nanjing University)

  • Rongchao Jin

    (Carnegie Mellon University)

Abstract

The ability to modulate nanoparticle (NP) assemblies with atomic precision is still lacking, which hinders us from creating hierarchical NP organizations with desired properties. In this work, a hierarchical fibrous (1D to 3D) assembly of Au NPs (21-gold atom, Au21) is realized and further modulated with atomic precision via site-specific tailoring of the surface hook (composed of four phenyl-containing ligands with a counteranion). Interestingly, tailoring of the associated counterion significantly changes the electrical transport properties of the NP-assembled solids by two orders of magnitude due to the altered configuration of the interacting π–π pairs of the surface hooks. Overall, our success in atomic-level modulation of the hierarchical NP assembly directly evidences how the NP ligands and associated counterions can function to guide the 1D, 2D, and 3D hierarchical self-assembly of NPs in a delicate manner. This work expands nanochemists’ skills in rationally programming the hierarchical NP assemblies with controllable structures and properties.

Suggested Citation

  • Qi Li & Jake C. Russell & Tian-Yi Luo & Xavier Roy & Nathaniel L. Rosi & Yan Zhu & Rongchao Jin, 2018. "Modulating the hierarchical fibrous assembly of Au nanoparticles with atomic precision," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06395-8
    DOI: 10.1038/s41467-018-06395-8
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    Cited by:

    1. Nan Xia & Jianpei Xing & Di Peng & Shiyu Ji & Jun Zha & Nan Yan & Yan Su & Xue Jiang & Zhi Zeng & Jijun Zhao & Zhikun Wu, 2022. "Assembly-induced spin transfer and distance-dependent spin coupling in atomically precise AgCu nanoclusters," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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