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Evolution from the plasmon to exciton state in ligand-protected atomically precise gold nanoparticles

Author

Listed:
  • Meng Zhou

    (Carnegie Mellon University)

  • Chenjie Zeng

    (Carnegie Mellon University)

  • Yuxiang Chen

    (Carnegie Mellon University)

  • Shuo Zhao

    (Carnegie Mellon University)

  • Matthew Y. Sfeir

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • Manzhou Zhu

    (Anhui University)

  • Rongchao Jin

    (Carnegie Mellon University)

Abstract

The evolution from the metallic (or plasmonic) to molecular state in metal nanoparticles constitutes a central question in nanoscience research because of its importance in revealing the origin of metallic bonding and offering fundamental insights into the birth of surface plasmon resonance. Previous research has not been able to probe the transition due to the unavailability of atomically precise nanoparticles in the 1–3 nm size regime. Herein, we investigate the transition by performing ultrafast spectroscopic studies on atomically precise thiolate-protected Au25, Au38, Au144, Au333, Au∼520 and Au∼940 nanoparticles. Our results clearly map out three distinct states: metallic (size larger than Au333, that is, larger than 2.3 nm), transition regime (between Au333 and Au144, that is, 2.3–1.7 nm) and non-metallic or excitonic state (smaller than Au144, that is, smaller than 1.7 nm). The transition also impacts the catalytic properties as demonstrated in both carbon monoxide oxidation and electrocatalytic oxidation of alcohol.

Suggested Citation

  • Meng Zhou & Chenjie Zeng & Yuxiang Chen & Shuo Zhao & Matthew Y. Sfeir & Manzhou Zhu & Rongchao Jin, 2016. "Evolution from the plasmon to exciton state in ligand-protected atomically precise gold nanoparticles," Nature Communications, Nature, vol. 7(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13240
    DOI: 10.1038/ncomms13240
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    Cited by:

    1. Qi Zhang & Jiebo Li & Jiao Wen & Wei Li & Xin Chen & Yifan Zhang & Jingyong Sun & Xin Yan & Mingjun Hu & Guorong Wu & Kaijun Yuan & Hongbo Guo & Xueming Yang, 2022. "Simultaneous capturing phonon and electron dynamics in MXenes," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Yi-Man Wang & Fang-Qin Yan & Qian-You Wang & Chen-Xia Du & Li-Ya Wang & Bo Li & Shan Wang & Shuang-Quan Zang, 2024. "Single-atom tailored atomically-precise nanoclusters for enhanced electrochemical reduction of CO2-to-CO activity," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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