Skin-inspired soft and stretchable electronic devices based on functional nanomaterials have broad applications such as health monitoring,human-machine interface,and the Internet of things.Solution-processed conductiv...Skin-inspired soft and stretchable electronic devices based on functional nanomaterials have broad applications such as health monitoring,human-machine interface,and the Internet of things.Solution-processed conductive nanocomposites have shown great promise as a building block of soft and stretchable electronic devices.However,realizing conductive nanocomposites with high conductivity,electromechanical stability,and low modulus over a large area at sub-100μm resolution remains challenging.Here,we report a moldable,transferrable,high-performance conductive nanocomposite comprised of an interpenetrating network of silver nanowires and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate).The stacked structure of the nanocomposite synergistically integrates the complementary electrical and mechanical properties of the individual components.We patterned the nanocomposite via a simple,low-cost micromolding process and then transferred the patterned large-area electrodes onto various substrates to realize soft,skin-interfaced electrophysiological sensors.Electrophysiological signals measured using the nanocomposite electrodes exhibit a higher signal-to-noise ratio than standard gel electrodes.The nanocomposite design and fabrication approach presented here can be broadly employed for soft and stretchable electronic devices.展开更多
基金funding from the Department of Biomedical Engineering at Texas A&M University,the Texas A&M Engineering Experiment Station,the National Science Foundation (Grant No.1648451)the National Institutes of Health (Grant No.1R21EB029064-01A1).
文摘Skin-inspired soft and stretchable electronic devices based on functional nanomaterials have broad applications such as health monitoring,human-machine interface,and the Internet of things.Solution-processed conductive nanocomposites have shown great promise as a building block of soft and stretchable electronic devices.However,realizing conductive nanocomposites with high conductivity,electromechanical stability,and low modulus over a large area at sub-100μm resolution remains challenging.Here,we report a moldable,transferrable,high-performance conductive nanocomposite comprised of an interpenetrating network of silver nanowires and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate).The stacked structure of the nanocomposite synergistically integrates the complementary electrical and mechanical properties of the individual components.We patterned the nanocomposite via a simple,low-cost micromolding process and then transferred the patterned large-area electrodes onto various substrates to realize soft,skin-interfaced electrophysiological sensors.Electrophysiological signals measured using the nanocomposite electrodes exhibit a higher signal-to-noise ratio than standard gel electrodes.The nanocomposite design and fabrication approach presented here can be broadly employed for soft and stretchable electronic devices.
