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Ionic polymer-metal composite (IPMC) actuators were prepared with Nafon flm as the ionic polymer and gold nanowire (Au-NW) mesh flm as the metal electrodes by hot-pressing, which shortened preparation time within 1 h. As a reference, IPMC actuator consisting of Nafon flm and gold foil (Au-foil) was also prepared. Au-NW mesh flm can be an electrode with thinner (about 150 nm) and lower surface resistivity (about 0.5 Ω sq⁻¹) than the conventional electrode prepared by electroless plating. Larger contact area of the Au-NW mesh electrode than the Au-foil electrode resulted in better actuation performance (60% larger peak-to-peak displacement in actuation). It was confrmed that the transformation behavior of Au-NWs difered depending on the external stimuli condition. Namely Au-NWs transformed to Au nanoparticles in the case of the heat stimulus only. Meanwhile, Au-NWs transformed to plates in the case of the heat and pressure stimuli. While higher temperature improved the adhesion of Au-NW mesh electrode to the Nafon surface, it induced the transformation of nanowire to plates. The IPMC actuator that the Au-NW mesh electrodes were hot-pressed at 90 ºC exhibited the highest capacitance and the largest peak-to-peak displacement in actuation. This research expanded the application feld of gold nanowires to the electromechanical devices.

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• Creative Commons BY Attribution 4.0 International
  

  オープンアクセス誌の論文です

Keyword: Ionic Polymer Metal Composite, Gold nanowire, Actuator, Flexible electrode

Date published: 2023-10-04

Publisher: Springer Nature

Journal:

• Scientific Reports (ISSN: 20452322) vol. 13 p. 1-7 16669

Funding:

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1038/s41598-023-43960-8

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Updated at: 2024-04-02 13:47:25 +0900

Published on MDR: 2023-10-06 13:30:09 +0900