Bioinspired MXene-Based User-Interactive Electronic Skin for Digital and Visual Dual-Channel Sensing

Nano-Micro Letters

Zheng Wang¹  Zhi Zhou¹  Shisheng He¹  Feng Chen¹  Wentao Cao¹  Xiaohao Liu¹  Yue Zhang¹  Daxiang Cui¹ 

[1] Department of Orthopedic, School of Medicine, Spinal Pain Research Institute, Shanghai Tenth People’s Hospital, Tongji University;

关键词: MXene;    Electronic skin;    Electromechanical behavior;    Joule heating;    Visualization;   

DOI  :  10.1007/s40820-022-00838-0

来源: DOAJ

【 摘 要 】

Abstract User-interactive electronic skin (e-skin) that could convert mechanical stimuli into distinguishable outputs displays tremendous potential for wearable devices and health care applications. However, the existing devices have the disadvantages such as complex integration procedure and lack of the intuitive signal display function. Here, we present a bioinspired user-interactive e-skin, which is simple in structure and can synchronously achieve digital electrical response and optical visualization upon external mechanical stimulus. The e-skin comprises a conductive layer with a carbon nanotubes/cellulose nanofibers/MXene nanohybrid network featuring remarkable electromechanical behaviors, and a stretchable elastomer layer, which is composed of silicone rubber and thermochromic pigments. Furthermore, the conductive nanohybrid network with outstanding Joule heating performance can generate controllable thermal energy under voltage input and then achieve the dynamic coloration of silicone-based elastomer. Especially, such an innovative fusion strategy of digital data and visual images enables the e-skin to monitor human activities with evermore intuition and accuracy. The simple design philosophy and reliable operation of the demonstrated e-skin are expected to provide an ideal platform for next-generation flexible electronics.

【 授权许可】

Unknown