Deep Eutectic-Based All-Solid-State Conductive Elastomers: Achieving Antibacterial, Conductive, and Transparent Properties

All-solid-state conductive elastomers (ACEs) are known as ideal functional materials for wearable electronic devices because they can reasonably circumvent the risks of water evaporation and ionic liquid leakage posed by hydrogel-based and ionogel-based conductive elastomers. However, antibacterial-type ACEs that are highly conductive, highly stretchable, and highly transparent at the same time are rare. Herein, based on the design concept of polymerizable deep eutectic solvents, we report for the first time a series of ACEs with these excellent integrated performances, consisting of hard (AAm/ChCl) and soft (HEA/ChCl). Among them, ACE1.5 with AgNWs embedded on the surface has excellent antibacterial properties (>99% inhibitory activity against E. coli and S. aureus), surface conductivity (∼6.34 S m–1), good tensile properties (∼890%), relatively high transparency (∼80% in the visible range), and excellent electrical self-healing capabilities (∼92% at 0.3 s at room temperature). Furthermore, flexible circuits constructed with ACE1.5 as the elastic substrate have better electrical stability (less than 1% change in resistance over 300%). Due to their excellent performance characteristics and simple processing, these ACEs are expected to find further applications in wearable electronics.