您的账号已在其他设备登录,您当前账号已强迫下线,
如非您本人操作,建议您在会员中心进行密码修改

确定

Chemiresistive NO Gas Sensor Based on Zinc Oxide Nanorods

摘要:

The synthesis of zinc oxide (ZnO) nanorods and their sensing properties with respect to nitric oxide(NO) gas were studied. The ZnO nanorods were grown by the hydrothermal method onto a ZnOthin film (-150 nm), which was designated as the ZnO thin filmanO nanorods. The ZnO thin filmwas pre-sputtered on the Au interdigitated electrode. By repeating the growth in a fresh precursorfrom one cycle to four cycles, the aspect ratio of the nanorods increased approximately from 10to 33. For NO gas sensor application, however, the sensitivity decreased as the aspect ratio of theZnO nanorods increased. It's very likely that higher density and higher aspect ratio of ZnO nanorodsprevent NO gas from penetrating into the ZnO nanorods. The optimal operation temperature for theZnO thin film/ZnO nanorods with an aspect ratio of 10 was found to be 240 °C for sensing NO gas.The limit of detection reached 2 ppb which is applicable for asthma diagnosis. To simulate humanbreath, cross-sensitivities with respect to CO_2and O_

更多
作者: Chia-Yu Lin [1] ; Po-Chin Nien [1] ; Wei-Yi Feng [2] ; Chii-Wann Lin [2] ; Jim Tunney [3] ; Kuo-Chuan Ho [1]
作者单位: Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan [1] Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan [2] Institute for Chemical Process and Environmental Technology, National Research Council of Canada,Ottawa K1A OR6, Canada [3]
DOI: 10.1088/0256-307X/23/4/044
发布时间: 2013-01-01
翻译满意度评价:
提交
  • 浏览:95

相似文献

  • 中文期刊
  • 外文期刊
  • 学位论文
  • 会议论文

加载中!

加载中!

加载中!

加载中!