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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
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自动装配可打印的不对称的自我绝缘的可伸缩导体用于人类接口.

Salahuddin Ahmed1, Marzia Momin1, Jiashu Ren1

  • 1Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA.

Advanced materials (Deerfield Beach, Fla.)
|April 2, 2024
PubMed
概括

研究人员开发了一种可打印的液体金属和导电聚合物复合材料. 这种材料实现了高导电性和伸展性,使得先进的皮肤接口电子设备成为可能.

关键词:
不对称的可拉伸导体导体人类界面 人类界面自动组装的自动组装机自己隔离的自我隔离.软物质是一种软物质.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 生物医学工程 生物医学工程

背景情况:

  • 柔软和可拉伸的导体对于先进的电子设备至关重要,特别是用于皮肤接口和可植入的应用.
  • 液体金属导体具有高电导率和灵活性,但由于粒子氧化,在复合材料中实现连续导电路径仍然存在挑战.
  • 现有的材料往往难以平衡高导电性与类似组织的机械性能和伸展性.

研究的目的:

  • 开发一种新的可打印复合材料,用于高导电性和可拉伸的电子应用.
  • 为了克服聚合物矩阵内的液体金属颗粒表面氧化的挑战.
  • 创建一种具有可调节导电性和机械性能模仿人类皮肤的材料.

主要方法:

  • 使用液体金属和导电聚合物制造出可打印的复合材料.
  • 采用自组装工艺来创建一个连续的导电通道.
  • 材料的电导率,伸展性和机械模量得到了特征.
  • 3D打印被用来制造皮肤接口传感器.

主要成果:

  • 复合材料在底面上实现了2089 S cm-1的高电导率,同时保持了绝缘的顶面.
  • 这种材料表现出极好的伸展性,超过800%.
  • 复合材料的弹性模量被发现与人类皮肤组织相似.
  • 该材料成功应用于制造3D打印的应变和电肌图传感器.

结论:

  • 一种基于液体金属和导电聚合物的新型可打印复合材料成功开发.
  • 该材料展示了高导电性,特殊伸展性和类似组织的机械性能的独特组合.
  • 这种自组装复合材料对下一代皮肤接口和植入式电子设备的发展具有重大前景.