POS5-1563
Laser-Induced Graphene Ionoskins Enabled by Aromatic Copolymer Networks
Topic
S5. Polymers for Electronics and Photonics
When and Where
Sep 29, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Hae Jung SON
Boseok KANG
Presenter(s)
Jae Yun Kim (KRICT)
Co-Author(s)
Abstract
Ionoskins have attracted significant attention for next-generation humanoid robotics, wearable healthcare and embodied artificial intelligence. However, achieving simultaneously high ionic liquid contents, mechanical robustness, and reliable electrode integration remains a critical challenge. Herein, we report a rigid aromatic polymer-based supramolecular ionogel that enables direct, high-fidelity LIG patterning on a highly conductive ionoskin. The host network is a random copolymer composed of IL-phobic and IL-philic units, which exhibit contrasting affinities toward the ionic liquid. Driven by these distinct affinities, the resulting molecularly tailored phase separation endows the ionoskin with outstanding mechanical toughness even at high ionic liquid loadings of 60–80 wt%. Furthermore, the fully aromatic backbone imparts outstanding thermal stability and permits high-quality LIG electrode inscription directly onto the gel surface, thereby eliminating complex transfer protocols. The LIG ionoskin platform is successfully deployed in various e-skin applications. Ultimately, integrating these components yields synaptic OECT devices capable of learning from external stimuli, establishing a versatile and scalable platform for next-generation ionoskins.
