{"title":"Capacitive and Resistive Humidity Sensors Based on Flexible Nanocellulose Film for Wearable Electronics","authors":"Vladyslav Lapshuda, Viktoriia Koval, Mykhailo Dusheiko, Valerii Barbash, Olga Yashchenko, Serhii Maliuta","doi":"10.3103/s0735272722120019","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper describes methods for obtaining nanocellulose from miscanthus stalks in an environmentally friendly way using the hydrolysis method. The nanocellulose parameters were investigated for applying the nanocellulose in capacitive and resistive humidity sensors. The influence of electrode system parameters and the operating frequency on sensor characteristics was investigated. It was established that the device sensitivity increases with the reduction of distance between electrodes and the operating frequency. Two models of sorption processes at the gas–solid interface were applied, namely, the Freundlich isotherm and Langmuir isotherm, for describing the mechanism of water adsorption by nanocellulose-based humidity sensors. The long-term operation stability of such devices was also investigated.</p>","PeriodicalId":52470,"journal":{"name":"Radioelectronics and Communications Systems","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radioelectronics and Communications Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s0735272722120019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
The paper describes methods for obtaining nanocellulose from miscanthus stalks in an environmentally friendly way using the hydrolysis method. The nanocellulose parameters were investigated for applying the nanocellulose in capacitive and resistive humidity sensors. The influence of electrode system parameters and the operating frequency on sensor characteristics was investigated. It was established that the device sensitivity increases with the reduction of distance between electrodes and the operating frequency. Two models of sorption processes at the gas–solid interface were applied, namely, the Freundlich isotherm and Langmuir isotherm, for describing the mechanism of water adsorption by nanocellulose-based humidity sensors. The long-term operation stability of such devices was also investigated.
期刊介绍：
Radioelectronics and Communications Systems covers urgent theoretical problems of radio-engineering; results of research efforts, leading experience, which determines directions and development of scientific research in radio engineering and radio electronics; publishes materials of scientific conferences and meetings; information on scientific work in higher educational institutions; newsreel and bibliographic materials. Journal publishes articles in the following sections:Antenna-feeding and microwave devices;Vacuum and gas-discharge devices;Solid-state electronics and integral circuit engineering;Optical radar, communication and information processing systems;Use of computers for research and design of radio-electronic devices and systems;Quantum electronic devices;Design of radio-electronic devices;Radar and radio navigation;Radio engineering devices and systems;Radio engineering theory;Medical radioelectronics.
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