电气接口的可伸缩和粘合双层
Yuli Song1, Kai Chen1, Shimeng Chen1
1State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China. msewukai@xjtu.edu.cn.
Materials horizons
|January 2, 2025
概括
研究人员开发了一种新的双层接口,用于连接软硬电子模块. 这种高导电性和粘合性接口使得可靠的连接无需糊,提高可拉伸设备的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电子 电子 电子 电子 电子 电子 电子
- 生物医学工程 生物医学工程
背景情况:
- 集成的伸缩设备对于植入式生物电子和可穿戴设备至关重要.
- 在模块连接处的解接故障限制了这些设备的实际应用.
- 现有的连接方法往往缺乏导电性,粘附性或应变耐受性.
研究的目的:
- 为可伸缩电子产品中可靠的模块连接开发一种高导电性和粘合性接口.
- 为了克服模块接口的应力度引起的电气损坏问题.
- 为了使柔软和刚性电子元件的强大的互连能够简单地,无粘合剂地制造.
主要方法:
- 一个双层接口的制造,包括一个纳米级的乙烯-乙烯-乙烯-乙烯 (SEBS) 弹性体层和一个SEBS-液体金属 (LM) 复合层.
- 通过SEBS层和LM粒子网络利用电子道进行电导.
- 采用LM颗粒的自组织沉积,以轻松制造接口.
主要成果:
- 双层接口对各种模块具有很强的粘附性,使其具有很高的应变耐受性 (软软的400%,软硬的250%).
- 在广泛的应变范围内 (0680%) 实现了高,不敏感应变的导电性3.7 × 10^5 S m^-1.
- 已证明的概念验证应用,如用于生理信号监测的电极,互连器和自元件.
结论:
- 开发的双层接口为连接不同模块在可拉伸电子系统中提供了强大而通用的解决方案.
- 这项技术显著提高了可穿戴和可植入生物电子设备的可靠性和性能.
- 简单的制造方法和优良的电气性能为先进的可拉伸电子应用铺平了道路.
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