Self-Deformable Flexible MEMS Tweezer Composed of Poly(Vinylidene Fluoride)/Ionic Liquid Gel for Electrical Measurements and Soft Gripping

Yamaguchi, Takafumi; Usami, Naoto; Misumi, Kei; Toyokura, Atsushi; Higo, Akio; Ono, Shimpei; Hwang, Gilgueng; Larrieu, Guilhem; Ikeuchi, Yoshiho; Tixier‐Mita, Agnès; Saito, Ken; Levi, Timothée; Mita, Yoshio

doi:10.1109/jmems.2022.3187428

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…Such a high carrier accumulation ability has enabled us to perform the field effect control of electronic phases such as Mott insulators, [20,21] superconductivity, [22–24] and ferromagnetism [25–29] . This fundings lead to the new functional devices utilizing ions such as sensors [30–36] and actuators [37–41] …”

Section: Application Of Field Effect Transistor Using An Electric Dou...mentioning

confidence: 99%

“…[25][26][27][28][29] This fundings lead to the new functional devices utilizing ions such as sensors [30][31][32][33][34][35][36] and actuators. [37][38][39][40][41] What is the best electrolyte for the operation of an EDLT? Historically, EDLT research has used polymer electrolytes composed of an alkali metal salt and a polymer matrix such as poly(ethylene oxide) (PEO) is often used.…”

Section: Introduction Of Electric Double Layer Transistormentioning

confidence: 99%

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Recent Advanced Applications of Ionic Liquid for Future Iontronics

Ono¹

2023

The Chemical Record

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Recently, electronic devices that make use of a state called the electric double layers (EDL) of ion have opened up a wide range of research opportunities, from novel physical phenomena in solid‐state materials to next‐generation low‐power consumption devices. They are considered to be the future iontronics devices. EDLs behave as nanogap capacitors, resulting the high density of charge carriers is induced at semiconductor/electrolyte by applying only a few volts of the bias voltage. This enables the low‐power operation of electronic devices as well as new functional devices. Furthermore, by controlling the motion of ions, ions can be used as semi‐permanent charge to form electrets. In this article, we are going to introduce the recent advanced application of iontronics devices as well as energy harvesters making use of ion‐based electrets, leading to the future iontronics research.

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Section: Application Of Field Effect Transistor Using An Electric Dou...mentioning

confidence: 99%

Section: Introduction Of Electric Double Layer Transistormentioning

confidence: 99%

Recent Advanced Applications of Ionic Liquid for Future Iontronics

Ono¹

2023

The Chemical Record

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“…The second issue is to confirm that the Au-NW mesh electrode gives better actuation performance than the Au-foil electrode because of larger contact area to the Nafion surface. Although some researchers utilized silver (Ag) or copper nanowires for IPMC actuators 13 , 14 , these nanowires are easily oxidized by (electro)chemical reaction. Au-NW, which has excellent chemical stability 15 – 17 , is suitable for the electrode material of IPMC actuators.…”

Section: Introductionmentioning

confidence: 99%

Gold nanowire mesh electrode for electromechanical device

Ikeda

2023

Sci Rep

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Ionic polymer-metal composite (IPMC) actuators were prepared with Nafion film as the ionic polymer and gold nanowire (Au-NW) mesh film as the metal electrodes by hot-pressing, which shortened preparation time within 1 h. As a reference, IPMC actuator consisting of Nafion film and gold foil (Au-foil) was also prepared. Au-NW mesh film 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 confirmed that the transformation behavior of Au-NWs differed 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 Nafion 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 field of gold nanowires to the electromechanical devices.

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“…13 On the basis of this background, we focused on the gold nanowire (Au-NW) lm as an electrode material for IPMC actuator. Although some researchers utilized silver (Ag) or copper nanowires for IPMC actuators, 14,15 these nanowires were easily oxidized due to the strong acidic property of Na on. Y. Wang reported rapid preparation of IPMC humidity sensor with Au-shell-Ag-NW by spraying and electrodepositing.…”

Section: Introductionmentioning

confidence: 99%

Gold Nanowire Mesh Electrode for Electromechanical Device

Ikeda

2023

Preprint

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Ionic polymer-metal composite (IPMC) actuators were prepared with Nafion film as the ionic polymer and gold nanowire (Au-NW) film as the metal electrodes by hot-pressing, which shorten manufacturing time within one hour. As a reference, IPMC actuator consisting of Nafion film and gold foil (Au-foil) was also prepared. Au-NW film afforded the mesh electrode with thinner and lower surface resistivity 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. It was confirmed that the transformation behavior of Au-NWs differs 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 Nafion surface, it induced the transformation of nanowire to plates. Therefore, the best preparation temperature was 90 ºC. This research expanded the application field of gold nanowires to the electromechanical devices.

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Self-Deformable Flexible MEMS Tweezer Composed of Poly(Vinylidene Fluoride)/Ionic Liquid Gel for Electrical Measurements and Soft Gripping

Abstract: We present a self-deformable flexible tweezer capable of simultaneous mechanical handling and electricalManuscript

Cited by 3 publications

References 23 publications

Recent Advanced Applications of Ionic Liquid for Future Iontronics

Recent Advanced Applications of Ionic Liquid for Future Iontronics

Gold nanowire mesh electrode for electromechanical device

Gold Nanowire Mesh Electrode for Electromechanical Device

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