材料科学
聚二甲基硅氧烷
标度系数
碳纳米管
电极
压阻效应
基质(水族馆)
纳米技术
弯曲半径
复合材料
可伸缩电子设备
润湿
薄板电阻
弯曲
光电子学
制作
数码产品
物理化学
病理
化学
地质学
替代医学
海洋学
医学
图层(电子)
作者
Henri Ervasti,Topias Järvinen,Olli Pitkänen,Éva Bozó,Johanna Hiitola-Keinänen,Olli-Heikki Huttunen,Jussi Hiltunen
标识
DOI:10.1021/acsami.1c04397
摘要
Printed piezoresistive strain sensors based on stretchable roll-to-roll screen-printed silver electrodes on polydimethylsiloxane substrates and inkjet-deposited single-wall carbon nanotube micropatterns are demonstrated in this work. With the optimization of surface wetting and inkjet printing parameters, well-defined microscopic line patterns of the nanotubes with a sheet resistance of <100 Ω/□ could be deposited between stretchable Ag electrodes on the plasma-treated substrate. The developed stretchable devices are highly sensitive to tensile strain with a gauge factor of up to 400 and a pressure sensitivity of ∼0.09 Pa–1, respond to bending down to a radius of 1.5 mm, and are suitable for mounting on the skin to monitor and resolve various movements of the human body such as cardiac cycle, breathing, and finger flexing. This study indicates that inkjet deposition of nanomaterials can complement well other printing technologies to produce flexible and stretchable devices in a versatile manner.
科研通智能强力驱动
Strongly Powered by AbleSci AI