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Issue 3, 2020
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A fiber-shaped light-emitting pressure sensor for visualized dynamic monitoring

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Abstract

The development of fiber-shaped pressure sensors is on the rise due to their high flexibility, breathability and integrability for promising applications in human-activity monitoring and personal healthcare. Achieving simultaneous dynamic monitoring and real-time visualization in one fiber-shaped sensor is attractive but remains challenging. Here, we demonstrate a fiber-shaped light-emitting pressure sensor to simultaneously detect and visualize the force stimuli. This sensor is realized by the design of a coaxial structure composed of a micro-patterned polymer composite hollow fiber as the sheath and a fiber electrode as the core. The sheath embedded with electroluminescent phosphors serves as both pressure-sensing and light-emitting layers. The resulting fiber-shaped sensor not only presents a high capacitive sensitivity of 16.81 N−1, but also allows people to visualize the real-time intensity and distribution of the force stimuli through electroluminescence. Impressively, our sensor still affords high flexibility and robustness even under recurring large deformations. As a demonstration, the fiber-shaped sensors have been woven into a smart textile and directly worn on human skin to monitor and display human activities like finger motion and facial expression. The textile-type visualizing–sensing platform proposed in this work may aid in pushing human-activity monitoring and personal healthcare a step forward.

Graphical abstract: A fiber-shaped light-emitting pressure sensor for visualized dynamic monitoring

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Article information


Submitted
16 Oct 2019
Accepted
24 Dec 2019
First published
24 Dec 2019

J. Mater. Chem. C, 2020,8, 935-942
Article type
Communication

A fiber-shaped light-emitting pressure sensor for visualized dynamic monitoring

X. Zhou, X. Xu, Y. Zuo, M. Liao, X. Shi, C. Chen, S. Xie, P. Zhou, X. Sun and H. Peng, J. Mater. Chem. C, 2020, 8, 935
DOI: 10.1039/C9TC05653J

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