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Probing nanoscale spatial distribution of plasmonically excited hot carriers

Author

Listed:
  • Sheng-Chao Huang

    (Xiamen University)

  • Xiang Wang

    (Xiamen University)

  • Qing-Qing Zhao

    (Xiamen University)

  • Jin-Feng Zhu

    (Xiamen University)

  • Cha-Wei Li

    (Xiamen University)

  • Yu-Han He

    (Xiamen University)

  • Shu Hu

    (Xiamen University)

  • Matthew M. Sartin

    (Xiamen University)

  • Sen Yan

    (Xiamen University)

  • Bin Ren

    (Xiamen University)

Abstract

Surface plasmons (SPs) of metals enable the tight focusing and strong absorption of light to realize an efficient utilization of photons at nanoscale. In particular, the SP-generated hot carriers have emerged as a promising way to efficiently drive photochemical and photoelectric processes under moderate conditions. In situ measuring of the transport process and spatial distribution of hot carriers in real space is crucial to efficiently capture the hot carriers. Here, we use electrochemical tip-enhanced Raman spectroscopy (EC-TERS) to in situ monitor an SP-driven decarboxylation and resolve the spatial distribution of hot carriers with a nanometer spatial resolution. The transport distance of about 20 nm for the reactive hot carriers is obtained from the TERS imaging result. The hot carriers with a higher energy have a shorter transport distance. These conclusions can be guides for the design and arrangement of reactants and devices to efficiently make use of plasmonic hot carriers.

Suggested Citation

  • Sheng-Chao Huang & Xiang Wang & Qing-Qing Zhao & Jin-Feng Zhu & Cha-Wei Li & Yu-Han He & Shu Hu & Matthew M. Sartin & Sen Yan & Bin Ren, 2020. "Probing nanoscale spatial distribution of plasmonically excited hot carriers," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18016-4
    DOI: 10.1038/s41467-020-18016-4
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    Cited by:

    1. Chengcheng Zhu & Li Xu & Yazi Liu & Jiang Liu & Jin Wang & Hanjun Sun & Ya-Qian Lan & Chen Wang, 2024. "Polyoxometalate-based plasmonic electron sponge membrane for nanofluidic osmotic energy conversion," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    2. Ling Tong & Zhou Yu & Yi-Jing Gao & Xiao-Chong Li & Ju-Fang Zheng & Yong Shao & Ya-Hao Wang & Xiao-Shun Zhou, 2023. "Local cation-tuned reversible single-molecule switch in electric double layer," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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