Advanced Iontronic Interfaces Through Ionic Laser-Induced Graphene
발표자
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초록
내용
Iontronic devices, celebrated for their user-friendly soft electronics, depend on the formation of an electrical double layer (EDL) at the interface between ion gels and electrodes, which plays a crucial role in performance. Despite extensive research aimed at enhancing performance through stable interface formation, this remains a challenge. Our study addresses this by utilizing CO2 irradiation to create flexible laser-induced graphene (LIG) electrodes on a polyimide (PI)-based ion gel. The PI ion gel facilitates efficient ion migration, thereby boosting EDL formation at the electrode interface. As a result, the ionic laser-induced graphene (i-LIG), synthesized from the PI ion gel precursor, display high-quality graphene with superior crystallinity and an expanded porous structure. Compared to other soft electrode-based vertical capacitors, the use of i-LIGs and PI ion gels minimizes interfacial resistance and enhances EDL capacitance, underscoring their potential for next-generation iontronic devices.