Semiliquid Metal Enabled Highly Conductive Wearable Electronics for Smart Fabrics

• DOI: 10.1021/acsami.9b08067
• Publication Date: 2019-07-25T11:13:53Z
• Authors: Rui Guo; Huimin Wang; Xuyang Sun; Siyuan Yao; Hao Chang; Hongzhang Wang; Jing Liu; Yingying Zhang
• Keywords: Stretchable electronics; Wearable Technology; Flexible Electronics; Liquid metal

Wearable electronics incorporating electronic components into commonly used fabrics can serve as new-generation personalized health-care systems for applications ranging from monitoring to disease treatment. Conventional rigid materials including gold, silver, and copper generally require a complicated fabrication process be sewn clothes. At the same time, other high-stretchable nonmetal such conductive polymers have limitation of low electroconductivity, restricting their further applications. Recently, gallium-based liquid metals exhibited superior advantages in flexible presented valuable potential creative printing technologies. Here, we proposed novel wearable prepared through roller technology based on adhesion difference semiliquid metal (Cu-EGaIn, eutectic gallium-indium mixed with microparticles) cotton polyvinyl acetate (PVAC) glue. Results shown that surface topography chemical interaction PVAC glue determine effect Cu-EGaIn mixture. The electric experiments demonstrated electromechanical stability fabricated lines fabrics. Further, series smart were developed an interactive circuit, stretchable light-emitting diode array, thermal management device easy operation, cost, large-area show practical method. This strategy may play important role design fabrics, contributing development customized systems.