Sensitivity-Adjustable Flexible Conductors Based on Liquid Metals via Magnetic Printing

The ability to shape and pattern conductors has been indispensable for manufacturing functional devices. Herein, a series of patterned liquid metals–based flexible electronics are fabricated via magnetic printing. The combination of highly conductive liquid metals and flexible photosensitive resins endows the as-prepared devices with excellent electrical and mechanical properties, such as high electric conductivity (8 × 10⁴ S m⁻¹), low detection hysteresis, good durability, and environmental stability. What's more, strain-insensitive flexible electronics can be achieved by designing the structure of liquid metal-based conductors, and the resistance is only increased 0.13 Ω at 100% strain. Therefore, the as-prepared liquid metals-based flexible electronics have promising applications in stretchable conductors.