中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Fabrication of single-walled carbon nanotube-based highly sensitive gas sensors

文献类型:期刊论文

作者Xu K(许可); Tian XJ(田孝军); Wu CD(吴成东); Liu J(刘剑); Li MX(李孟歆); Sun, Ying; Wei, FaNan; Wei FN(魏发南)
刊名Science China Technological Sciences
出版日期2013
卷号56期号:1页码:32-35
关键词Adsorption Automobile manufacture Electric field effects Field effect transistors Gas detectors Microelectrodes Scanning electron microscopy Single-walled carbon nanotubes (SWCN) Ultraviolet radiation
ISSN号1674-7321
产权排序1
通讯作者田孝军
中文摘要A highly sensitive single-walled carbon nanotube (SWCNT)-based ammonia (NH3) gas detector is manufactured by orderly assembling SWCNT using the dielectrophoretical (DEP) technology. Atom force microscopy (AFM) and scanning electron microscopy (SEM) images revealed that SWCNTs were assembled between the microelectrodes. SWCNTs were affected by the electrophoretic force which was carried out by the related theoretical analysis in a nonuniform electric field. The SWCNT field effect transistors geometry was obtained. The electrical performance of NH3 gas sensor with the SWCNT field effect transistors geometry was tested before and after the adoption of NH3 at room temperature. Experimental results indicated that the efficient assembly of SWCNT was obtained by the applied alternating current voltage with frequency of 2 MHz and amplitude of 10 V. The SWCNTs-based gas sensor had high sensitivity to NH3, and the electrical conductance of NH3 gas sensor reduced two times after interaction with NH3. The SWCNTs surface gas molecules were removed by means of ultraviolet ray irradiation for 10 min. Hence, the fabricated NH3 gas sensor could be reversible. There is a clear evidence that the adsorption of NH3 on the SWCNT channel is easy to be realized. Our theoretical results are consistent with recent experiments. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.
英文摘要Number of references:11
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]Engineering ; Materials Science
收录类别SCI ; EI
语种英语
WOS记录号WOS:000314375300006
公开日期2012-12-28
源URL[http://ir.sia.cn/handle/173321/10352]  
专题沈阳自动化研究所_机器人学研究室
推荐引用方式
GB/T 7714
Xu K,Tian XJ,Wu CD,et al. Fabrication of single-walled carbon nanotube-based highly sensitive gas sensors[J]. Science China Technological Sciences,2013,56(1):32-35.
APA Xu K.,Tian XJ.,Wu CD.,Liu J.,Li MX.,...&Wei FN.(2013).Fabrication of single-walled carbon nanotube-based highly sensitive gas sensors.Science China Technological Sciences,56(1),32-35.
MLA Xu K,et al."Fabrication of single-walled carbon nanotube-based highly sensitive gas sensors".Science China Technological Sciences 56.1(2013):32-35.

入库方式: OAI收割

来源:沈阳自动化研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。