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)
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| 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
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