Fully soft organic electrochemical transistor for on-skin electrophysiological monitoring
발표자
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초록
내용
On-skin, soft wearable electronic device with conformal contact allow the realization of advanced applications in a wide range of fields such as smart healthcare systems, internet of things, artificial sensory skin. One of these electronic devices is Organic Electrochemical Transistors (OECTs). However, the device hinders the further development to augment it in fully soft format. Here, we present fully soft OECT with soft active channel, elastomeric source, drain and gate electrodes, and gel electrolyte. These devices show high electrical performance and remains stable under high mechanical strain. The soft active channel was prepared with PEDOT:PSS and PEG as additive to enhance conductivity as well as plasticizer. Ag nanowires percolated in an elastomeric polymer matrix (SEBS) used as source/drain, gate electrodes. The iongel was prepared as quasi-solid electrolyte due to its leakfree and soft nature. The fabricated fully soft OECTs were demonstrated on skin to amplify ECG signals.