Graduate School of Convergence Science and Technology, Seoul National University , Seoul 151-742, Republic of Korea.
Advanced Institutes of Convergence Technology , Suwon 443-270, Republic of Korea.
ACS Appl Mater Interfaces. 2016 Jan 27;8(3):1733-41. doi: 10.1021/acsami.5b09337. Epub 2016 Jan 12.
One-dimensional flexible metallic nanowires (NWs) are of considerable interest for next-generation wearable devices. The unavoidable challenge for a wearable electrode is the assurance of high conductivity, flexibility, and durability with economically feasible materials and simple manufacturing processes. Here, we use a straightforward solvothermal method to prepare a flexible conductive material that contains reduced graphene oxide (RGO) nanosheets bridging oriented copper NWs. The GO-assistance route can successfully meet the criteria listed above and help the composite films maintain high conductivity and durable flexibility without any extra treatment, such as annealing or acid processes. The composite film exhibits a high electrical performance (0.808 Ω·sq(-1)) without considerable change over 30 days under ambient conditions. Moreover, the Cu NW-RGO composites can be deposited on polyester cloth as a lightweight wearable electrode with high durability and simple processability and are very promising for a wide variety of electronic devices.
一维柔性金属纳米线 (NWs) 在下一代可穿戴设备中引起了相当大的兴趣。对于可穿戴电极来说，不可避免的挑战是确保使用经济可行的材料和简单的制造工艺实现高导电性、灵活性和耐用性。在这里，我们使用简单的溶剂热法制备了一种包含还原氧化石墨烯 (RGO) 纳米片桥接定向铜 NW 的柔性导电材料。GO 辅助路线成功满足了上述标准，并有助于复合薄膜在无需任何额外处理（如退火或酸处理）的情况下保持高导电性和持久的灵活性。在环境条件下，复合薄膜在 30 天内表现出高电性能（0.808 Ω·sq(-1))，几乎没有变化。此外，Cu NW-RGO 复合材料可以沉积在聚酯布上作为一种具有高耐用性和简单可加工性的轻质可穿戴电极，对于各种电子设备非常有前途。
