Highly Transparent Conducting Ionic Hydrogels of Double Network Structure for Deformable Electronics

Highly deformable soft electrodes have garnered significant attention due to their potential to drive innovation in wearable electronics and soft robotics. To render the soft electrodes, stretchable, conductive, and transparent polymer networks have been studied extensively, but fulfilling these requirements remains challenging. In this work, we developed double-network ionic hydrogels of high transparency and stretchability due to the finely tuned network structure and transparent electrolyte. Based on the high performance of the ionic hydrogels, electroluminescent devices were achieved with an inorganic phosphor emission layer, which exhibits high luminance under extreme deformation. The remarkable transparency of the ionic hydrogels further enabled to fabrication of novel electroluminescent devices of tandem structures, allowing color variation by independent control of each emission layer.<br/>&lt;quillbot-extension-portal&gt;&lt;/quillbot-extension-portal&gt;