A stretchable and self-healable all-in-one iontronic elastomer for luminescent caution and multiple perceptions

Mimicking the multi-functions of biological skin via ionic elastomers is of primary interest for flexible and wearable electronics. Herein, we present a facile all-in-one strategy for preparing highly stretchable and healable iontronic elastomer, being capable of luminescent caution and multimode perception. The all-in-one iontronic elastomer is composed of a phosphor-doped polydimethylsiloxane emitter sandwiched between two solid ionic gel conductors. The all-in-one iontronic elastomer is sensitive to variable stimuli, including tensile, pressure, temperature and liquid. In particular, it shows stable light emission even after stretching up to 250%, bending or twisting 180°, and cut:ting partially. Moreover, the all-in-one iontronic elastomer has been utilized for real-time monitoring of human joint motion and environmental change, as well as signal caution of wearable/portable display, suggesting great potential in personal health and safety care.