A universal biocompatible and multifunctional solid electrolyte in p-type and n-type organic electrochemical transistors for complementary circuits and bioelectronic interfaces

Organic electrochemical transistors (OECTs) have found increasing applications in various emerging technologies including printed and wearable electronics, chemical and biological sensing, neuromorphic computing, and soft robotics. However, some of the challenges associated with the use of liquid electrolytes in OECTs include increased manufacturing costs for more complex and reliable encapsulation methods to prevent leakage and evaporation, as well as surface tension issues related to device miniaturization which can lead to non-uniform device operation. Though solid electrolytes have been proposed to overcome these issues, very few systems have demonstrated generality and compatibility with a wide range of state-of-the-art OMEIC materials. In this work, we present a bio-compatible, stretchable and flexible, self-healable solid-state electrolyte, that is compatible with a wide range of p- and n-type OMEICs for high performance OECTs.