Organic mixed ionic/electronic conductors have gained considerable interest in bioelectronics, power electronics, circuits and neuromorphic computing. Despite recent progress and a rapidly expanding library of new materials, the understanding of stability and transport/coupling of ionic and electronic carriers remain largely unexplored. We highlight recent synthetic and processing approaches used to tailor electrochemical device properties revealing new classes of OMIEC active materials, as well as new opportunities enabled by such advances. We also employ varied biasing schemes to explore mechanisms of OECT degradation, expanding our understanding of performance degradation beyond aspects intrinsic to the OMIEC materials.
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