Soft and Stretchable Liquid Metal–Elastomer Composite for Wearable Electronics

• DOI: 10.1021/acsami.2c10025
• Publication Date: 2022-08-11T17:40:58Z
• Authors: ChengHao Huang; XiaoDong Wang; Qingping Cao; Dongxian Zhang; Shaoqing Ding; Honglan Xie; Jian-Zhong Jiang
• Keywords: Stretchable electronics; Wearable Technology; Liquid metal

Soft devices, especially capacitive stress (or strain) sensors, are important for applications, including wearable medical monitoring, electronic skin, and soft robotics. The incorporation of liquid metal particles (LMPs) into highly deformable elastomers as inclusions ameliorates the mechanical compliance caused by a rigid filler. high dielectric constant feature LMPs suitable sensors with sensitivity large real-time dynamic detection range. Here, class LM-elastomer composites introduced elastic properties, making them uniquely application sensors. prepared stretchable sensor can detect bending degree finger, monitor physiological signals in real time, distinguish vibration from pronunciation different letters. nanoscale X-ray computational tomography (nano-CT) measurements indeed changes under stress, i.e., matrix distribute uneven to relatively uniform, agglomerate, even connect each other have conduction path composition LMP contents, which cause physical properties devices operation. cognition is instructive promoting their further applications field devices.