{"title":"基于 LiCl/LIPG 复合材料的高性能柔性自供电湿度传感器","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":"{\"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}","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}
High performance flexible and self-powered humidity sensors based on LiCl/LIPG composites
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.
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.
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