Dr. Jinwon Jeong

Bio

Jinwon Jeong is a Postdoctoral Research Associate in the Department of Electrical and Computer Engineering at Baylor University. He received his Ph.D. in Electrical Engineering from Baylor University in 2025 and earned both his M.S. and B.S. in Mechanical Engineering from Myongji University in 2020 and 2018, respectively. His research focuses on flexible and stretchable sensor systems, tilt sensing technologies, energy harvesting platforms, field-driven actuation and manipulation, and microrobotic systems for targeted drug delivery. His work centers on the development of next-generation sensing, actuation, and biomedical engineering technologies.

Dissertation

Liquid-Metal-Based Strain Sensor, Tilt Sensors, and Triboelectric Nanogenerators (TENGs)

Abstract

Gallium-based liquid-metals have emerged as promising next-generation materials for wearable and soft electronics, offering a solution to the inherent limitations of traditional solid conductors and conductive polymers. Unlike rigid metals, they combine high electrical and thermal conductivity with mechanical flexibility, enabling reliable performance under deformation. Among them, Galinstan and eutectic gallium-indium (EGaIn) stand out for their biocompatibility, low vapor pressure, high thermal and electrical conductivity, providing a non-toxic alternative to mercury. A distinguishing property of these alloys is the spontaneous formation of a thin oxide layer (~3 nm) in ambient air, which is mechanically robust and adhesive. This dissertation presents strategies for utilizing oxidize layer of liquid metal as adhesive conductor and engineering surfaces of materials non-wetting to oxidized galliumbased liquid-metals toward advanced sensing and energy-harvesting applications. 

What Faculty Say

Wearable devices and soft robotics demand conductive materials that can endure severe mechanical deformation without sacrificing electrical performance. Overcoming the fracture risks of solid metals and the low conductivity of flexible polymers, Dr. Jeong champions gallium-based liquidmetal alloys as a non-toxic, highly conductive, and infinitely deformable alternative. By establishing scalable fabrication methodologies for advanced sensing and selfpowered systems, his work lays a critical foundation for the next generation of safe and reliable wearable electronics.

- Dr. Jeong Bong (JB) Lee, Professor and Department Chair, Department of Electrical & Computer Engineering