期刊
NANO LETTERS
卷 23, 期 23, 页码 11174-11183出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c03670
关键词
self-healing; stretchable conductor; stretchableelectronics; silver nanowires; liquid metal
This study presents an electrically self-healing and ultrastretchable conductor for deformable electronic devices. It utilizes bilayer silver nanowire/liquid metal microcapsule nanocomposites to achieve ultrahigh stretchability, minor changes in resistance during stretching, and stable resistance after repetitive deformations. These conductors have been successfully applied in skin-attachable electronic patches and stretchable light-emitting diode arrays.
Stretchable conductive nanocomposites are essential for deformable electronic devices. These conductors currently face significant limitations, such as insufficient deformability, significant resistance changes upon stretching, and drifted properties during cyclic deformations. To tackle these challenges, we present an electrically self-healing and ultrastretchable conductor in the form of bilayer silver nanowire/liquid metal microcapsule nanocomposites. These nanocomposites utilize silver nanowires to establish their initial excellent conductivity. When the silver nanowire networks crack during stretching, the microcapsules are ruptured to release the encased liquid metal for recovering the electrical properties. This self-healing capability allows the nanocomposite to achieve ultrahigh stretchability for both uniaxial and biaxial strains, minor changes in resistance during stretching, and stable resistance after repetitive deformations. The conductors have been used to create skin-attachable electronic patches and stretchable light-emitting diode arrays with enhanced robustness. These developments provide a bioinspired strategy to enhance the performance and durability of conductive nanocomposites.
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