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Highly stretchable patternable conductive circuits and wearable strain sensors based on polydimethylsiloxane and silver nanoparticles

机译:基于聚二甲基硅氧烷和银纳米颗粒的高度可伸缩的可燃性导电电路和可穿戴应变传感器

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摘要

Patterned circuits on highly stretchable conductive films are critical in the practical application of next-generation flexible and wearable devices. Currently, most patterned circuits do not exhibit highly stretchable properties, and a lithography process in vacuum is required. In this study, silver nanoparticles (AgNPs) and liquid polydimethylsiloxane (PDMS) are mixed together to form liquid conductive adhesives (CAs). Various stretchable patterned circuits are prepared using this CA to achieve all required functions. Six basic patterns, including rhombus, straight lines, serpentine, triangle, ellipses, and fold line, are studied for their stretchable and electrical properties. The film is found to maintain excellent conductivity after withstanding tensile strain of up to 320% and more than 10 000 stretching-releasing cycles of 0%-150%. More than 86% of visible lights can be penetrated through the film due to the transparent substrates. Functional and wearable devices are manufactured, and devices fabricated from rhombus-pattern circuits are found to exhibit stable electrical conductivity when subjected to very high tensile strains. According to the sensitivity of the straight-line patterned circuit to strain, a repeatable use sensitive strain sensor is studied. Also, two types of artificial electrical skin are demonstrated.
机译:高伸缩导电膜上的图案电路在下一代柔性和可穿戴设备的实际应用中至关重要。目前,大多数图案化电路不表现出高度可拉伸的性能,并且需要在真空中的光刻过程。在该研究中,将银纳米颗粒(AgNP)和液体聚二甲基硅氧烷(PDMS)混合在一起以形成液体导电粘合剂(CAS)。使用该CA制备各种可拉伸的图案电路,以实现所有所需的功能。为其拉伸和电性能研究了六种基本图案,包括菱形,直线,蛇形,三角形,椭圆和折叠线。发现薄膜在耐久性菌株高达320%且超过10 000升高的拉伸循环的拉伸菌株后保持优异的导电性。由于透明基板,可以通过薄膜穿透超过86%的可见光。制造功能和可穿戴装置,并且当受到非常高的拉伸菌株时,发现由菱形图案电路制造的装置具有稳定的电导率。根据直线图案化电路对应变的灵敏度,研究了可重复使用敏感应变传感器。而且,证明了两种人造电肌肤。

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  • 来源
    《Nanotechnology》 |2019年第18期|共10页
  • 作者单位

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol State Key Lab Adv Welding &

    Joining Harbin 150001 Heilongjiang Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

    Harbin Inst Technol Flexible Printed Elect Technol Ctr Shenzhen 518055 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    highly stretchable; strain sensor; patterned circuits; conductive adhesives; AgNPs; PDMS;

    机译:高度伸展;应变传感器;图案电路;导电粘合剂;agnps;pdms;

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