Invited Talk: Stretchable Devices and Components Using Liquid Metal

Title: Stretchable Devices and Components Using Liquid Metal

Speaker: Prof. Hiroki Ota from Yokohama National University

Date and Time: Monday 28 July 2025, 13:00

Abstract: Recent advances in flexible electronics have led to the development of numerous sensors and systems designed to accommodate various applications. Among these, wearable devices represent a particularly promising field due to their potential for seamless integration with the human body. A key requirement for skin-adhesive wearable devices is stretchability, which allows them to conform to the natural movements of the skin without compromising performance. In this context, liquid metals have attracted considerable attention as stretchable conductive materials, owing to their remarkable mechanical robustness under bending and stretching. Integrating liquid metal wiring into stretchable devices can therefore provide enhanced reliability and stability, even under large deformations.　In this study, we introduce both physical and chemical sensors that utilize Ga-based liquid metal, and demonstrate their implementation in controlled stretchable devices. By harnessing the inherent flexibility and durability of liquid metal, our approach paves the way for robust, high-performance systems suitable for next-generation wearable applications.