Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, Japan.
Langmuir. 2012 Dec 21;28(51):17593-6. doi: 10.1021/la304240r. Epub 2012 Dec 12.
In this letter, we report a simple approach to fabricating scalable flexible tactile sensors using a nanofiber assembly of regioregular poly(3-hexylthiophene) (P3HT). Uniform P3HT nanofibers are obtained through a continuous electrospinning process using a homogeneous solution of high-molecular-weight P3HT. The P3HT nanofibers are oriented by collecting them on a rotating drum collector. Small physical inputs into the self-standing P3HT nanofiber assemblies give rise to additional contact among neighboring nanofibers, which results in decreased contact resistance in directions orthogonal to the nanofiber orientation. The P3HT nanofiber assemblies could detect pressure changes and bending angles by monitoring the resistance changes, and the sensor responses were repeatable.
在这封信中，我们报告了一种使用规则排列的聚 3-己基噻吩（P3HT）的纳米纤维组装来制造可伸缩的柔性触觉传感器的简单方法。通过使用高分子量 P3HT 的均匀溶液进行连续电纺过程，可以获得均匀的 P3HT 纳米纤维。通过将 P3HT 纳米纤维收集在旋转鼓收集器上，使 P3HT 纳米纤维取向。微小的物理输入到自立的 P3HT 纳米纤维组件中，导致相邻纳米纤维之间的额外接触，这导致与纳米纤维取向正交的方向上的接触电阻减小。通过监测电阻变化，P3HT 纳米纤维组件可以检测压力变化和弯曲角度，并且传感器响应是可重复的。
