Interactively Full‐Color Changeable Electronic Fiber Sensor with High Stretchability and Rapid Response. (13th March 2020)

• Record Type: Journal Article
• Authors: Wang, Yunpeng; Niu, Wenbin; Lo, Chiao‐Yueh; Zhao, Yusen; He, Ximin; Zhang, Guorui; Wu, Suli; Ju, Benzhi; Zhang, Shufen
• Is Part Of: Advanced functional materials. Volume 30:Number 19(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-03-13
• Subjects: hydrogel -- interactive sensing -- photonic microtubules -- stretchable electronics -- structural color; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202000356
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: Smart interactive electronic devices can dynamically respond to and visualize environmental stimuli. Inspired by the rapid color changes of natural creatures, an interactive electronic fiber sensor with high stretchability and tunable coloration is presented. It is based on an ingenious multi‐sheath design on a piezoresistive electronic fiber coupled with a mechanochromic photonic crystal microtubule. It has the unique capabilities of sensing and visualizing its deformation simultaneously, by reconstructing conductive paths and regulating the lattice spacing of the photonic sheath. In particular, it exhibits dynamic color switching spanning the full visible region (from red to blue), fast optical/electrical response (≈80 ms), and a large working range (0–200%), allowing its application as a user‐interactive sensor for dynamically monitoring large joint movements and muscle microvibrations of the human body in real time. This investigation provides a general platform for emerging interactive devices, which are promising for applications in wearable electronics, human–machine interactions, and intelligent robots. Abstract : A novel interactive electronic device is fabricated by integrating photonic crystal microtubules on a piezoresistive fiber. The device transforms strain into an electrical signal and optical information simultaneously, realizing a direct intelligent interaction between user and device. It performs continuous, reversible, and dynamic color switching, with excellent electrical responses and visual readout capabilities when monitoring both large and small movements.