期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 148, 期 2, 页码 595-600出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2010.05.052
关键词
ZnO-SnO2; Core-shell nanowires; Gas sensors; NO2 sensor; C2H5OH sensor
资金
- Korean government (MEST) [ROA-2008-000-20032-0]
- Ministry of Knowledge Economy [M2008010013]
- MEST [2009-0083380]
- Korea Evaluation Institute of Industrial Technology (KEIT) [K0004114] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Korea Institute of Industrial Technology(KITECH) [M2008010013] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2008-0060083] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The ZnO-SnO2 core-shell nanowires (NWs) were synthesized by a continuous two-step vapor growth method at different synthesis temperatures. A crystalline 15-20 nm-thick, SnO2 shell layer was pseudo-epitaxially coated on ZnO NWs with a diameter of 50-80 nm. The gas response of the ZnO-SnO2 core-shell NW sensor to 10 ppm NO2 reached similar to 33 times enhancement compared to that of the ZnO NWs at 200 degrees C. In addition, the ZnO-SnO2 core-shell NW sensors showed selective detection to NO2 at 200-300 degrees C and to C2H5OH at 400 degrees C. The enhanced gas responses to NO2 and C2H5OH are discussed in relation to the thin SnO2 shell layer and core-shell configuration of the NWs. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据
分享论文
