Choline Ionic Liquid for Long-Term Stable Organic Electrochemical Transistors.

ABSTRACT: A choline-based ionic liquid is introduced into organic electrochemical transistors(OECTs) to achieve enhanced performance and long-term stability, and these OECTs can be used for sensing biological signals such as electrocardiograms (ECGs) and electromyograms (EMGs) for up to 3 months. Spectroscopic analysis and electrochemical characterization focused on the ionic interactions between the choline-based ionic liquid and PEDOT:PSS, particularly the impact on device operation. Their strong ionic interactions result in enhanced OECT electrical performance, including 80 ns of response time, faster than state-of-the-art devices. Furthermore, 3D arrays and ultrathin OECTs attached to skin with consistent performance are demonstrated for substantial applicability and potential in research for ma

SUBMITTER: Jo YJ 

PROVIDER: S-EPMC12810677 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature