Interconnected Heat-Press-Treated Gold Nanomesh Conductors for Wearable Sensors
Interconnected Heat-Press-Treated Gold Nanomesh Conductors for Wearable Sensors
复制标题
DOI：
10.1021/acsanm.9b02514
复制
发表时间：
2020-02-01
影响因子：
5.9
通讯作者：
Someya, Takao
中科院分区：
文献类型：
--
作者：
Okutani, Chihiro;Yokota, Tomoyuki;Someya, Takao
我们报告了由互连网状电极引起的金纳米网电极的线电阻的降低。多孔结构电极由于电极之间的高结电阻而显示出高电阻。对于可穿戴传感器的布线，导电布线的电阻需要最小。因此，有必要通过互连电极来降低纳米网导体的电阻。我们在以下步骤中制造了互连的纳米网导体。我们在180摄氏度（接近PVA的熔点）下热压电纺聚乙烯醇（PVA）纤维片，然后沉积金层。我们通过用喷雾水溶解PVA层将纳米网导体附着到目标基底上。电极彼此电连接，这将线电阻降低了76%，并且薄层电阻从3.18 Ω/sq降低到1.27 Ω/sq。此外，互连结构将纳米网导体的拉伸性从25%提高到80%。当导线长度增加时，减小的电阻通过保持相同的电特性来帮助操作可穿戴设备。
We report the reduction in the wire resistance of gold nanomesh electrodes caused by interconnecting mesh electrodes. The porous-structured electrodes show high resistance because of the high junction resistance between electrodes. For the wiring of wearable sensors, the resistance of conductive wiring needs to be minimal. Therefore, it is necessary to reduce the resistance of nanomesh conductors by interconnecting electrodes. We fabricated the interconnected nanomesh conductors in the following steps. We heat pressed electrospun poly(vinyl alcohol) (PVA) fiber sheets at 180 degrees C (near the melting point of PVA), and then deposited the gold layer. We attached the nanomesh conductors to a target substrate by dissolving the PVA layer with spraying water. The electrodes were electrically connected to each other, which decreased the wire resistance by 76% and the sheet resistance from 3.18 to 1.27 Omega/sq. Furthermore, the interconnected structures improved stretchability of nanomesh conductors from 25 to 80%. The decreased resistance helps operate wearable devices by maintaining the same electrical properties when the wire length is increased.