Author:
Qi Qi,Wang Qi,Liu Nanliu,Zheng Xiaoping,Ding Xiongjie,Liang Zhiwen,Wang Qing,Zhang Guoyi
Abstract
A flexible humidity sensor has been realized based on Co3O4 nanoneedles via a deposition technique. High humidity sensing and excellent flexible properties are observed in the tests. The impedance of the as-prepared sensor decreases by nearly three orders of magnitude
with increasing relative humidity (RH) from 11% to 95% on a semilogarithmic scale. The response and recovery times are about 3 and 6 s respectively. The maximum hysteresis is less than 4% under 80% RH. No obvious changes for the sensing performance can be obtained after 100 bending/extending
cycles and bending tests. These performances make the current sensor a good candidate for flexible humidity detection.
Publisher
American Scientific Publishers
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials
Cited by
3 articles.
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