Capacitive flexible humidity sensor based on GOQD/CNC composites

IF 2.8 4区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Materials Science: Materials in Electronics Pub Date : 2025-01-09 DOI:10.1007/s10854-024-14143-6
Yulin Zeng, Li Zeng
{"title":"Capacitive flexible humidity sensor based on GOQD/CNC composites","authors":"Yulin Zeng,&nbsp;Li Zeng","doi":"10.1007/s10854-024-14143-6","DOIUrl":null,"url":null,"abstract":"<div><p>In response to the urgent demand for highly sensitive, flexible, and reliable humidity sensors in fields such as environmental monitoring, industrial control, and biomedicine, a humidity sensor with graphene oxide quantum dots (GOQD) and cellulose nanocrystals (CNC) composites as the humidity-sensitive materials and a flexible polyimide-based interdigitated electrode as the transducer is developed in this study. The experimental results show that the capacitive response of GOQD/CNC composites to humidity is greatly improved with a sensitivity of 1439.6 pF/%RH, which is approximately 3 times higher than that of pure GOQD, and more than 21 times higher than that of pure CNC. This significant enhancement is attributed to the synergistic effect between the GOQDs and the CNC, where the addition of the CNC allows for smaller sized GOQDs to adhere to the surface, which mitigates the aggregation of the GOQDs to a certain extent and increases the contact area of the composite with water molecules, thus increasing the sensitivity of the sensors to changes in humidity considerably. Moreover, the GOQD/CNC-based humidity sensor also exhibits good stability, small hysteresis, rapid response/recovery times, and excellent repeatability. This research provides a new approach for the design of high-performance flexible humidity sensors.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 2","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-024-14143-6","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0

Abstract

In response to the urgent demand for highly sensitive, flexible, and reliable humidity sensors in fields such as environmental monitoring, industrial control, and biomedicine, a humidity sensor with graphene oxide quantum dots (GOQD) and cellulose nanocrystals (CNC) composites as the humidity-sensitive materials and a flexible polyimide-based interdigitated electrode as the transducer is developed in this study. The experimental results show that the capacitive response of GOQD/CNC composites to humidity is greatly improved with a sensitivity of 1439.6 pF/%RH, which is approximately 3 times higher than that of pure GOQD, and more than 21 times higher than that of pure CNC. This significant enhancement is attributed to the synergistic effect between the GOQDs and the CNC, where the addition of the CNC allows for smaller sized GOQDs to adhere to the surface, which mitigates the aggregation of the GOQDs to a certain extent and increases the contact area of the composite with water molecules, thus increasing the sensitivity of the sensors to changes in humidity considerably. Moreover, the GOQD/CNC-based humidity sensor also exhibits good stability, small hysteresis, rapid response/recovery times, and excellent repeatability. This research provides a new approach for the design of high-performance flexible humidity sensors.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
基于GOQD/CNC复合材料的电容式柔性湿度传感器
针对环境监测、工业控制、生物医学等领域对高灵敏度、高柔性、高可靠性湿度传感器的迫切需求,本研究开发了一种以氧化石墨烯量子点(GOQD)和纤维素纳米晶体(CNC)复合材料为湿度敏感材料,以柔性聚酰亚胺基交叉指状电极为传感器的湿度传感器。实验结果表明,GOQD/CNC复合材料对湿度的电容性响应大大提高,灵敏度为1439.6 pF/%RH,比纯GOQD高约3倍,比纯CNC高21倍以上。这种显著的增强归因于GOQDs和CNC之间的协同效应,其中CNC的加入允许较小尺寸的GOQDs粘附在表面,这在一定程度上减轻了GOQDs的聚集,增加了复合材料与水分子的接触面积,从而大大提高了传感器对湿度变化的灵敏度。此外,基于GOQD/ cnc的湿度传感器还具有良好的稳定性,滞后小,响应/恢复时间快,重复性好。该研究为高性能柔性湿度传感器的设计提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Materials Science: Materials in Electronics
Journal of Materials Science: Materials in Electronics 工程技术-材料科学:综合
CiteScore
5.00
自引率
7.10%
发文量
1931
审稿时长
2 months
期刊介绍: The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
期刊最新文献
Phase regulated design strategy of antiferroelectric Cd-modified (Pb, La) (Sn, Zr, Ti) O3 ceramics for pulsed power capacitors Random vibration lifetime prediction model based on overshoot correction for metal hermetic sealing structure considering transient response Additively manufactured polyethylene terephthalate-based high-gain multiband-flexible antenna for wireless mobile applications Fabricating In2O3 NPs /MWCNTs heterostructure photodetectors by laser ablation method Rational design of CoNiMo trimetallic hydroxide nanostructured flexible electrode for supercapacitor application
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1