INIDS1-1149
Printed Metallic Electrodes with High Conductivity and Mechanical Compliance for Flexible and Stretchable Electronics
Topic
IDS1. KRICT 50th Anniversary session, Present and Future of Chemical Materials Research
When and Where
Sep 30, 2026
11:10 - 11:35
Room 105
Session Chairs
Jongmin PARK
Presenter(s)
Su Yeon Lee (Korea Research Institute of Chemical Technology)
Co-Author(s)
Abstract
The development of highly conductive electrodes that can simultaneously satisfy electrical performance, mechanical compliance, and scalable manufacturing is essential for next-generation flexible and stretchable electronic systems. In this talk, I present two complementary approaches for realizing high-performance printed electrodes based on copper (Cu) particles and silver (Ag) flakes. Oxide-free Cu particulate films were rapidly sintered in ambient air using high-intensity photonic irradiation, enabling efficient particle coalescence without conventional thermal processing. The effects of photon energy on the chemical structure and microstructural evolution of the Cu films were systematically investigated. In addition, Ag flake-based composite electrodes were developed by incorporating conductive Ag flakes into an elastomeric polymer, forming stable conductive networks that maintained electrical performance under repeated mechanical deformation. The integration of photonic-sintered Cu electrodes and stretchable Ag composite conductors offers a scalable and cost-effective platform for flexible and stretchable electronics, with promising applications in wearable devices, soft robotics, electronic skin, flexible sensors, and printed electronic systems.
