• 文献标题:   Self-Patterning of Highly Stretchable and Electrically Conductive Liquid Metal Conductors by Direct-Write Super-Hydrophilic Laser- Induced Graphene and Electroless Copper Plating
  • 文献类型:   Article
  • 作  者:   WANG ZB, WU YG, ZHU B, CHEN QX, ZHANG Y, XU ZJ, SUN DH, LIN LW, WU DZ
  • 作者关键词:   stretchable electrode, liquid metal, laserinduced graphene, stretchable strain sensor, magnetic soft robot
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244 EI 1944-8252
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1021/acsami.2c18814 EA JAN 2023
  • 出版年:   2023

▎ 摘  要

Stretchable electrodes are desirable in flexible electronics for the transmission and acquisition of electrical signals, but their fabrication process remains challenging. Herein, we report an approach based on patterned liquid metals (LMs) as stretchable electrodes using a super-hydrophilic laser-induced graphene (SHL-LIG) process with electroless plating copper on a polyimide (PI) film. The LMs/SHL-LIG structures are then transferred from the PI film to an Ecoflex substrate as stretchable electrodes with an ultralow sheet resistance of 3.54 m omega per square and excellent stretchability up to 480% in elongation. Furthermore, these electrodes show outstanding performances of only 8% electrical resistance changes under a tensile strain of 300%, and strong immunity to temperature and pressure changes. As demonstration examples, these electrodes are integrated with a stretchable strain sensing system and a smart magnetic soft robot toward practical applications.