▷ 제목: Highly-Deformable Optioelectronic Devices Achieved by Mechanically Rubust Ionic Soft Matter

▷ 내용: Highly deformable soft electrodes have garnered significant attention for their potential to drive innovation in wearable electronics and soft robotics. In this work, we present the development of double-network ionic hydrogels with high transparency and stretchability, achieved through finely tuned network structures and transparent electrolytes. Leveraging the exceptional performance of these ionic hydrogels, we demonstrate electroluminescent devices with inorganic phosphor emission layers, exhibiting high luminance even under extreme deformation. Furthermore, the remarkable transparency of the ionic hydrogels enables the fabrication of novel electroluminescent devices with tandem structures, allowing for independent control of each emission layer's color. To enhance the luminance of deformable alternating-current electroluminescent (ACEL) devices, we employ color-conversion materials, transparent and durable hydrogel electrodes, and high-k nanoparticles. Incorporating quantum dots facilitates efficient generation of red and green light through blue electroluminescence conversion. The addition of a high-k dielectric, BaTiO3, further enhances luminance, resulting in uniformly bright white light emission with a high color-rendering index from both top and bottom. These devices exhibit seamless operation in various deformed states, including bending, twisting, and stretching up to 400%, promising versatile applications in soft optoelectronics.