High performance flexible and self-powered humidity sensors based on LiCl/LIPG composites

IF 8 1区化学 Q1 CHEMISTRY, ANALYTICAL Sensors and Actuators B: Chemical Pub Date : 2024-09-06 DOI:10.1016/j.snb.2024.136569

{"title":"High performance flexible and self-powered humidity sensors based on LiCl/LIPG composites","authors":"","doi":"10.1016/j.snb.2024.136569","DOIUrl":null,"url":null,"abstract":"<div><p>This study aimed to prepare high-performance flexible and power-generation humidity sensors based on lithium chloride (LiCl) coated on laser-induced porous graphene (LIPG). LIPG was produced on the polyimide film (PI) as a substrate through an ultraviolet laser processing system. By using a primary cell structure, the humidity sensor consisted of Cu and Al electrodes and a LiCl active layer. Humidity sensors based on LiCl/LIPG composites were manufactured using a LiCl concentration of 1.5 mol/L, a PI microdrilling spacing of 1.5 mm, and an electrode gap of 1 mm due to their highest regression coefficient of 0.9866 for output voltage versus relative humidity (HR), the shortest response/recovery times of 17.1/24 s, and maximum response of 0.77 V, respectively. Furthermore, the proposed sensor demonstrated an excellent sensitivity of 8.12 mV/%RH, a small hysteresis of 5.66 % RH, a high long-term stability, high repeatability, and high bendability. In this study, the self-powered sensor was used for the application of non-contact switches and power generation. In addition, this research provided facile and practical technology to fabricate flexible and self-powered humidity sensors.</p></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators B: Chemical","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925400524012991","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}

引用次数: 0

Abstract

This study aimed to prepare high-performance flexible and power-generation humidity sensors based on lithium chloride (LiCl) coated on laser-induced porous graphene (LIPG). LIPG was produced on the polyimide film (PI) as a substrate through an ultraviolet laser processing system. By using a primary cell structure, the humidity sensor consisted of Cu and Al electrodes and a LiCl active layer. Humidity sensors based on LiCl/LIPG composites were manufactured using a LiCl concentration of 1.5 mol/L, a PI microdrilling spacing of 1.5 mm, and an electrode gap of 1 mm due to their highest regression coefficient of 0.9866 for output voltage versus relative humidity (HR), the shortest response/recovery times of 17.1/24 s, and maximum response of 0.77 V, respectively. Furthermore, the proposed sensor demonstrated an excellent sensitivity of 8.12 mV/%RH, a small hysteresis of 5.66 % RH, a high long-term stability, high repeatability, and high bendability. In this study, the self-powered sensor was used for the application of non-contact switches and power generation. In addition, this research provided facile and practical technology to fabricate flexible and self-powered humidity sensors.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于 LiCl/LIPG 复合材料的高性能柔性自供电湿度传感器

本研究旨在制备基于涂覆在激光诱导多孔石墨烯（LIPG）上的氯化锂（LiCl）的高性能柔性发电湿度传感器。LIPG 是通过紫外激光加工系统在聚酰亚胺薄膜（PI）基底上制作的。通过使用原电池结构，湿度传感器由铜、铝电极和氯化锂活性层组成。在氯化锂浓度为 1.5 mol/L、PI 微钻孔间距为 1.5 mm、电极间隙为 1 mm 的条件下，制造出了基于氯化锂/LIPG 复合材料的湿度传感器，其输出电压与相对湿度（HR）的回归系数最高（0.9866），响应/恢复时间最短（17.1/24 s），最大响应为 0.77 V。此外，该传感器还具有出色的灵敏度（8.12 mV/%RH）、较小的滞后（5.66 % RH）、较高的长期稳定性、较高的重复性和较高的可弯曲性。在这项研究中，自供电传感器被应用于非接触开关和发电。此外，这项研究还为制造柔性自供电湿度传感器提供了简便实用的技术。

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

Sensors and Actuators B: Chemical 工程技术-电化学

CiteScore

14.60

自引率

11.90%

发文量

1776

审稿时长

3.2 months

期刊介绍： Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.