试剂
离子
离子键合
材料科学
环境压力
电阻抗
压力传感器
光电子学
声学
分析化学(期刊)
生物医学工程
化学
电气工程
色谱法
有机化学
机械工程
工程类
医学
物理
物理化学
热力学
作者
Baozhong Chen,Kai Shen,Yaping Li,Bo Huang,Huiming Su,Jintao Xu,Yang Shao‐Horn,Qi Zhang,Linfeng Lan,Junbiao Peng,Yong Cao
出处
期刊:Small
[Wiley]
日期:2024-02-22
标识
DOI:10.1002/smll.202310847
摘要
Abstract Sensing pressure and temperature are two important functions of human skin that integrate different types of tactile receptors. In this paper, a deformable artificial flexible multi‐stimulus‐responsive sensor is demonstrated that can distinguish mechanical pressure from temperature by measuring the impedance and the electrical phase at the same frequency without signal interference. The electrical phase, which is used for measuring the temperature, is totally independent of the pressure by controlling the surface micro‐shapes and the ion content of the ionic film. By doping the counter‐ion exchange reagent into the ionic liquid before pouring, the upper temperature measuring limit increases from 35 to 50 °C, which is higher than the human body temperature and the ambient temperature on Earth. The sensor shows high sensitivity to pressure (up to 0.495 kPa −1 ) and a wide temperature sensing range (−10 to 50 °C). A multimodal ion‐electronic skin (IE M ‐skin) with an 8 × 8 multi‐stimulus‐responsive sensor array is fabricated and can successfully sense the distribution of temperature and pressure at the same time. Finally, the sensors are used for monitoring the touching motions of a robot‐arm finger controlled by a remote interactive glove and successfully detect the touching states and the temperature changes of different objects.
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