PDF(Pubmed)
Abstract：
Single-walled carbon nanotubes (SWCNTs) present excellent electronic and mechanical properties desired in wearable and flexible devices. The preparation of SWCNT films is the first step for fabricating various devices. This work developed a scalable and feasible method to assemble SWCNT thin films on water surfaces based on Marangoni flow induced by surface tension gradient. The films possess a large area of 40 cm × 30 cm (extensible), a tunable thickness of 15∼150 nm, a high transparency of up to 96%, and a decent conductivity. They are ready to be directly transferred to various substrates, including flexible ones. Flexible strain sensors were fabricated with the films on flexible substrates. These sensors worked with high sensitivity and repeatability. By realizing multi-functional human motion sensing, including responding to voices, monitoring artery pulses, and detecting knuckle and muscle actions, the assembled SWCNT films demonstrated the potential for application in smart devices.
摘要：
单壁碳纳米管（SWCNT）具有可穿戴和柔性设备所需的优异的电子和机械性能。SWCNT膜的制备是制造各种器件的第一步。这项工作开发了一种可扩展且可行的方法，基于表面张力梯度诱导的Marangoni流，在水表面上组装SWCNT薄膜。薄膜具有40厘米×30厘米（可延伸）的大面积，可调厚度为15~150nm，高达96%的高透明度，和一个体面的导电性。它们准备直接转移到各种基材上，包括灵活的。柔性应变传感器是用柔性衬底上的膜制造的。这些传感器具有高灵敏度和可重复性。通过实现多功能人体运动传感,包括回应声音，监测动脉搏动,检测关节和肌肉动作，组装的SWCNT薄膜显示了在智能设备中应用的潜力。
