POS5-1116
Highly stretchable and transparent piezo-ionic sensors based on double-network hydrogels for wearable electronics
Topic
S5. Polymers for Electronics and Photonics
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Seunga Jung (University of Seoul)
Co-Author(s)
Abstract
Piezo-ionic sensors are promising devices for next-generation wearable electronics. However, the sensing stability of conventional piezo-ionic sensors is highly vulnerable to extreme mechanical deformations and structural fatigue. In this work, a double-network hydrogel-based piezo-ionic sensor was presented that enables strain-invariant signal generation through an optimized dual-crosslinked polymeric architecture, which establishes stable nano-channels for rapid stress-induced ion migration. This effectively suppresses structural noise and ensures consistent ion transport even under extreme deformation. The piezo-ionic sensor exhibits exceptionally stable severe compression and dynamic twisting, while maintaining a highly reliable voltage output across a broad stretching range. Furthermore, the device achieves a remarkably fast response time and ultrahigh sensitivity, demonstrating significant potential for practical applications under dynamic human body motions.
