Journal
ADVANCED MATERIALS
Volume 33, Issue 31, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202101396
Keywords
electroluminescent devices; ion-conducting elastomers; iontronics; self-healing; triboelectric nanogenerators
Categories
Funding
- Youth Innovation Promotion Association of CAS [2017055]
- National Key Research and Development Program of China [2016YFA0202702, 2017YFB0702100]
- Youth Backbone Individual Project of Beijing Excellent Talents Training [Y9QNGG2701]
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A dry ion-conducting elastomer with dynamic crosslinking structures has been developed, exhibiting high ionic conductivity, self-healing capability, stretchability, and transparency. Two soft iontronic devices were successfully realized using this new material, showing self-healing and stretchable properties, wide operational temperature range, and excellent stability.
Soft ionic conductors show great promise in multifunctional iontronic devices, but currently utilized gel materials suffer from liquid leakage or evaporation issues. Here, a dry ion-conducting elastomer with dynamic crosslinking structures is reported. The dynamic crosslinking structures endow it with combined advantageous properties simultaneously, including high ionic conductivity (2.04 x 10(-4) S cm(-1) at 25 degrees C), self-healing capability (96% healing efficiency), stretchability (563%), and transparency (78%). With this ionic conductor as the electrode, two soft iontronic devices (electroluminescent devices and triboelectric nanogenerator tactile sensors) are realized with entirely self-healing and stretchable capabilities. Due to the absence of liquid materials, the dry ion-conducting elastomer shows wide operational temperature range, and the iontronic devices achieve excellent stability. These findings provide a promising strategy to achieve highly conductive and multifunctional soft dry ionic conductors, and demonstrate their great potential in soft iontronics or electronics.
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