Philip N. Bartlett, Patricia B.M. Archer, Sim K. Ling-Chung
{"title":"Conducting polymer gas sensors part I: fabrication and characterization","authors":"Philip N. Bartlett, Patricia B.M. Archer, Sim K. Ling-Chung","doi":"10.1016/0250-6874(89)87065-9","DOIUrl":null,"url":null,"abstract":"<div><p>A simple but effective method for the fabrication of reusable dual-microband electrodes for use as gas sensors based on electrochemically polymerized conducting polymers is described. The electrodes are made by sputtering gold onto both sides of thin (12 μm) Mylar films and then encapsulating the resulting gold/Mylar/gold sandwich so that only the edge is exposed. The resulting electrodes are characterized using cyclic voltammetry, a.c. impedance and chronoamperometry.</p><p>Following the electrochemical deposition of polypyrrole onto the dual-microband electrodes, they can be used as gas-sensitive chemiresistors. Preliminary results for the change of resistance of such a device on exposure to methanol vapour are presented.</p></div>","PeriodicalId":101159,"journal":{"name":"Sensors and Actuators","volume":"19 2","pages":"Pages 125-140"},"PeriodicalIF":0.0000,"publicationDate":"1989-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0250-6874(89)87065-9","citationCount":"179","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0250687489870659","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 179
Abstract
A simple but effective method for the fabrication of reusable dual-microband electrodes for use as gas sensors based on electrochemically polymerized conducting polymers is described. The electrodes are made by sputtering gold onto both sides of thin (12 μm) Mylar films and then encapsulating the resulting gold/Mylar/gold sandwich so that only the edge is exposed. The resulting electrodes are characterized using cyclic voltammetry, a.c. impedance and chronoamperometry.
Following the electrochemical deposition of polypyrrole onto the dual-microband electrodes, they can be used as gas-sensitive chemiresistors. Preliminary results for the change of resistance of such a device on exposure to methanol vapour are presented.