Flexible relative humidity sensor based on reduced graphene oxide and interdigital electrode for smart home

Micro & nano letters

article

Weile Jiang¹  Fuzheng Zhang⁴  Qijing Lin⁴ 

[1] School of Humanities and Social Science, Xi'an Jiaotong University;Institute of Heritage Sites & Historical Architecture Conservation, Xi'an Jiaotong University;All authors contributed equally to this work.;State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University;Collaborative Innovation Center of High-End Manufacturing Equipment, Xi'an Jiaotong University;Chongqing Key Laboratory of Micro-Nano Systems and Intelligent Sensing, Chongqing Academician Workstation, Chongqing 2011 Collaborative Innovation Center of Micro/Nano Sensing and Intelligent Ecological Internet of Things, Chongqing Technology and Business University

关键词: flexible sensor;    interdigital electrode;    relative humidity;    RGO;    smart home;    Sensing and detecting devices;    Hygrometry;    Electrochemistry and electrophoresis;    Intelligent sensors;    Humidity measurement;   

DOI  :  10.1049/mna2.12116

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

With the rapid development and application of smart homes, sensors known as ‘neurons’ have become more and more important in this field. In response to the demand for relative humidity parameter in home monitoring, a flexible relative humidity sensor based on reduced graphene oxide (RGO) and interdigital electrode for smart homes was designed and prepared in this paper. The base of the interdigital electrode structure was polyimide, and the RGO film was prepared by a spraying process. A test system for the relative humidity sensor with different saturated salt solutions was also built. The test results show that the sensor resistance and relative humidity have a linear relationship in the range of 24.6% RH–82.9% RH, and the linearity is as high as 0.987. The sensitivity of the sensor is 0.51 kΩ/% RH. The relative humidity sensor with the characteristics of flexibility and high sensitivity will have broad application prospects and value in the field of smart homes.

【 授权许可】

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