期刊
ADVANCED FUNCTIONAL MATERIALS
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202306453
关键词
biphasic conductors; EGaIn; eutectic gallium-indium; gallium-based liquid metals; liquid metals; soft electronics; stretchable electronics
Soft and stretchable electronics have various applications in different fields, including compliant bioelectronics, textile-integrated wearables, mechanical sensors, electronics skins, and soft robotics. Gallium-based liquid metals have been proposed as deformable conductors with high electrical conductivity and self-healing property. However, their deposition and patterning is challenging. Recent development of biphasic conductor architectures, combining solid-phase materials and liquid-phase conductors, aims to address this challenge and achieve scalable fabrication of reliable stretchable circuits. This article reviews the recent progress in biphasic conductor architectures and their applications in soft electronic systems, discussing material combinations, printing and patterning methods, and potential applications.
Soft and stretchable electronics have diverse applications in the fields of compliant bioelectronics, textile-integrated wearables, novel forms of mechanical sensors, electronics skins, and soft robotics. In recent years, multiple material architectures have been proposed for highly deformable circuits that can undergo large tensile strains without losing electronic functionality. Among them, gallium-based liquid metals benefit from fluidic deformability, high electrical conductivity, and self-healing property. However, their deposition and patterning is challenging. Biphasic material architectures are recently proposed as a method to address this problem, by combining advantages of solid-phase materials and composites, with liquid deformability and self-healing of liquid phase conductors, thus moving toward scalable fabrication of reliable stretchable circuits. This article reviews recent biphasic conductor architectures that combine gallium-based liquid-phase conductors, with solid-phase particles and polymers, and their application in fabrication of soft electronic systems. In particular, various material combinations for the solid and liquid phases in the biphasic conductor, as well as methods used to print and pattern biphasic conductive compounds, are discussed. Finally, some applications that benefit from biphasic architectures are reviewed.
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