The Polymer Society of Korea

Abstract

Wearable electronics demand material platforms that combine mechanical compliance, durability under repeated deformation, and scalable fabrication. However, many existing systems remain limited by mechanical fragility or manufacturing constraints. In this talk, I present recent advances in soft electronic materials based on functional polymer composites and liquid metal-enabled conductors for wearable applications. These include 3D-printable PEDOT:PSS-ionic liquid colloids for stretchable and biocompatible electronics, mechanically durable EGaIn composite–coated stretchable fibers for robust interconnects, and skin-conformal electronic tattoos assembled on demand. I will also introduce a meniscus-guided printing strategy for semi-solid liquid metal microgranular particles, enabling scalable and high-resolution soft electronic patterning. Together, these approaches demonstrate practical routes toward manufacturable wearable soft electronics.