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A Highly Stretchable ZnO@Fiber‐Based Multifunctional Nanosensor for Strain/Temperature/UV Detection
Author(s) -
Liao Xinqin,
Liao Qingliang,
Zhang Zheng,
Yan Xiaoqin,
Liang Qijie,
Wang Qinyu,
Li Minghua,
Zhang Yue
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201505223
Subject(s) - materials science , gauge factor , nanosensor , fabrication , flexibility (engineering) , nanotechnology , nanofiber , fiber , nanowire , wearable computer , optoelectronics , optical fiber , composite material , computer science , embedded system , medicine , statistics , alternative medicine , mathematics , pathology , telecommunications
Stretchable and multifunctional sensors can be applied in multifunctional sensing devices, safety forewarning equipment, and multiparametric sensing platforms. However, a stretchable and multifunctional sensor was hard to fabricate until now. Herein, a scalable and efficient fabrication strategy is adopted to yield a sensor consisting of ZnO nanowires and polyurethane fibers. The device integrates high stretchability (tolerable strain up to 150%) with three different sensing capabilities, i.e., strain, temperature, and UV. Typically achieved specifications for strain detection are a fast response time of 38 ms, a gauge factor of 15.2, and a high stability of >10 000 cyclic loading tests. Temperature is detected with a high temperature sensitivity of 39.3% °C −1 , while UV monitoring features a large ON/OFF ratio of 158.2. With its fiber geometry, mechanical flexibility, and high stretchability, the sensor holds tremendous prospect for multiparametric sensing platforms, including wearable devices.