School of Nano-Bioscience and Chemical Engineering, School of Mechanical and Advanced Materials Engineering, Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea.
Nano Lett. 2013 Jun 12;13(6):2814-21. doi: 10.1021/nl401070p. Epub 2013 May 28.
Transparent electrodes that can remain electrically conductive and stable under large mechanical deformations are highly desirable for applications in flexible and wearable electronics. This paper describes a comprehensive study of the electrical, optical, and mechanical properties of hybrid nanostructures based on two-dimensional graphene and networks of one-dimensional metal nanowires, and their use as transparent and stretchable electrodes. Low sheet resistance (33 Ω/sq) with high transmittance (94% in visible range), robust stability against electric breakdown and oxidation, and superb flexibility (27% in bending strain) and stretchability (100% in tensile strain) are observed, and these multiple functionalities of the hybrid structures suggest a future promise for next generation electronics. The use of hybrid electrodes to fabricate oxide semiconductor transistors and single-pixel displays integrated on wearable soft contact lenses with in vivo tests are demonstrated.
透明电极在大机械变形下仍能保持电导率和稳定性，因此非常适合用于柔性和可穿戴电子设备。本文全面研究了基于二维石墨烯和一维金属纳米线网络的混合纳米结构的电学、光学和力学性能，并将其用作透明可拉伸电极。该混合结构具有低面电阻（33 Ω/sq）、高光透过率（可见光范围内 94%）、对电击穿和氧化的强稳定性、出色的柔韧性（弯曲应变 27%）和拉伸性（拉伸应变 100%），这些多功能特性为下一代电子设备的发展提供了广阔的前景。本文还展示了使用混合电极来制造氧化物半导体晶体管和集成在可穿戴软隐形眼镜上的单像素显示器，并进行了体内测试。
