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首页> 外文期刊>Materials science forum >Fabrication of Silver-Nanowire/PVDF Self-Supporting Thin Flexible Electrode Membranes
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Fabrication of Silver-Nanowire/PVDF Self-Supporting Thin Flexible Electrode Membranes

机译：银纳米线/ PVDF的制造自支撑薄柔性电极膜

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摘要

Flexible electrodes play an increasing role for medical applications, such as ECG (electrocardiography) or TENS (Transcutaneous electrical nerve stimulation) due to comfort in use and thus their suitability for health monitoring under movement and during sport. Polymers, such as polyvinylidene fluoride (PVDF), are promising for the development of fabrication methods and materials for such application cases, as stable flexible thin polymer membranes can be produced at large scale. We have compared different up-scalable fabrication techniques of thin electrode membranes based on PVDF as a function of silver nanowire concentration, using electrospinning, spincoating, and drop-casting techniques. The produced membranes and thin films were investigated by electrical four-point probing, optical microscopy, atomic force microscopy, as well as by stability tests under bending, and water exposure. We show, that a combination of electrospinning and spin-coating presents a reliable method for the fabrication of AgNW-PVDF based flexible nanofiber membrane electrodes (NMEs). Our nanofiber membrane electrodes (NMEs) exhibit a 10 times lower sheet resistance than AgNW-PVDF thin film electrodes (TFEs) produced for comparisons by a combination of spincoating and drop-casting using the same amounts of AgNWs. Upon immersion in water for up to 48 hours, we do not detect any nanowire release or decomposition of the fabricated electrodes, which is promising in view of application of the AgNW-PVDF composite electrodes in humid environment.
机译：由于使用的舒适性，柔性电极对医疗应用的作用越来越大，例如ECG（心电图）或数十（经皮））或数十（经皮发动神经刺激），因此它们在运动和运动期间的健康监测适用性。聚合物，例如聚偏二氟乙烯（PVDF），很有希望用于开发用于这种应用案例的制造方法和材料，因为可以大规模生产稳定的柔性薄聚合物膜。我们基于PVDF与银纳米线浓度的函数进行了比较了薄电极膜的不同可缩放制造技术，使用静电纺丝，脊髓盐和液滴技术。通过电四点探测，光学显微镜，原子力显微镜以及弯曲和水暴露的稳定性测试来研究产生的膜和薄膜。我们展示了静电纺丝和旋涂的组合呈现了用于制造基于AgNW-PVDF的柔性纳米纤维膜电极（NMES）的可靠方法。我们的纳米纤维膜电极（NMES）表现出比使用相同量的AgNWS的胚胎和滴铸件的组合制备的agnw-pvdf薄膜电极（TFE）的薄层电阻的10倍。浸入水中长达48小时后，我们没有检测到制造电极的任何纳米线释放或分解，这考虑到Agnw-PVDF复合电极在潮湿环境中的应用。

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  • 来源
    《Materials science forum》 |2021年第2期|1272-1279|共8页
  • 作者

    Chahrazad BENBALIT; Olivera SCHEUBER; Eleonora FRAU; Silvia SCHINTKE;

  • 作者单位

    Laboratory of Applied NanoSciences Department of Industrial Technologies HEIG-VD HES-SO // University of Applied Sciences Western Switzerland (HES-SO) CH-1401 Yverdon-les-Bains Switzerland lnstitut UTINAM UMR 6213 CNRS-UBFC Universite de Bourgogne Franche-Comte (UBFC) F-25030 Besancon Cedex France;

    Laboratory of Applied NanoSciences Department of Industrial Technologies HEIG-VD HES-SO // University of Applied Sciences Western Switzerland (HES-SO) CH-1401 Yverdon-les-Bains Switzerland;

    Laboratory of Applied NanoSciences Department of Industrial Technologies HEIG-VD HES-SO // University of Applied Sciences Western Switzerland (HES-SO) CH-1401 Yverdon-les-Bains Switzerland;

    Laboratory of Applied NanoSciences Department of Industrial Technologies HEIG-VD HES-SO // University of Applied Sciences Western Switzerland (HES-SO) CH-1401 Yverdon-les-Bains Switzerland;

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  • 正文语种 eng
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  • 关键词

    silver nanowires; drop casting; spincoating; electrospinning; atomic force microscopy; electrical probing;

    机译：银纳米线;掉落;胚胎;静电纺丝;原子力显微镜;电气探测;

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