{"title":"Gas-sensing characteristics of Li+-doped and undoped ZnO whiskers","authors":"M. Egashira, N. Kanehara, Y. Shimizu, H. Iwanaga","doi":"10.1016/0250-6874(89)87041-6","DOIUrl":null,"url":null,"abstract":"<div><p>The gas-sensing characteristics of Li<sup>+</sup>-doped and undoped ZnO whiskers were investigated for 1% carbon monoxide, 1% hydrogen and 1% methane in air as a function of the operating temperature between 200 °C and 700 °C. The gas sensitivities of undoped ZnO whiskers were negligibly small to the sample gases because of their extremely low resistivities in air. However, the sensitivity was significantly enhanced by Li<sup>+</sup>-doping of the whiskers. The values of the enhanced sensitivities were comparable to those of the as-grown [101] SnO<sub>2</sub> whiskers. But there was no definite correlation between the sensitivity and the morphology of the Li<sup>+</sup>-doped ZnO whiskers.</p></div>","PeriodicalId":101159,"journal":{"name":"Sensors and Actuators","volume":"18 3","pages":"Pages 349-360"},"PeriodicalIF":0.0000,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0250-6874(89)87041-6","citationCount":"42","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0250687489870416","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 42
Abstract
The gas-sensing characteristics of Li+-doped and undoped ZnO whiskers were investigated for 1% carbon monoxide, 1% hydrogen and 1% methane in air as a function of the operating temperature between 200 °C and 700 °C. The gas sensitivities of undoped ZnO whiskers were negligibly small to the sample gases because of their extremely low resistivities in air. However, the sensitivity was significantly enhanced by Li+-doping of the whiskers. The values of the enhanced sensitivities were comparable to those of the as-grown [101] SnO2 whiskers. But there was no definite correlation between the sensitivity and the morphology of the Li+-doped ZnO whiskers.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
