Controlling SWCNT assembling density by electrokinetics
文献类型：期刊论文
| 作者 | Yu HB(于海波) ; Hermann, Sascha; Dong ZL(董再励); Mai, John; Li WJ(李文荣); Schulz, Stefan E.
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| 刊名 | Sensors and Actuators, A: Physical
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| 出版日期 | 2013 |
| 卷号 | 201页码:36-42 |
| 关键词 | Assembly Dielectric devices Electric fields Electric properties Electrodes Electrodynamics Electromagnetic fields Electronic properties Electroosmosis Electrophoresis Single-walled carbon nanotubes (SWCN) |
| ISSN号 | 0924-4247 |
| 产权排序 | 1 |
| 通讯作者 | 李文荣 |
| 中文摘要 | Single-walled carbon nanotubes (SWCNTs) as the colloid in a colloidal solution can be polarized in a non-uniform electric field and experience a net force that is the so-called dielectrophoresis (DEP) force, due to the interaction between the induced dipoles and the electric field. The positive DEP force can be usedto position and assemble arrays of SWCNTs. Inversely, the negative DEP force can be utilized to separate SWCNTs in terms of their electronic properties. Moreover, Joule heating generated by the electric field can lead to other electrokinetics forces in the colloidal solution, which give rise to fluidic motion of the solution. Additionally, at low frequencies, the electrical double layer also induces a steady fluidic motion, a phenomenon known as AC electroosmotic flow. These fluidic motion in turn exerts a drag force on thenanotubes. Hence, to controllably assemble SWCNTs using DEP force is a non-trivial task. In this article, the mechanisms of electrokinetics and electrohydrodynamics are systematically analyzed through numerical simulations for a set of parameters that are typically used for assembling SWCNTs between metalelectrodes. Finally, experimental results from the frequency-dependent assembly of SWCNTs using this set of parameters are described and discussed. These results show that the density of SWCNTs assembled between electrodes can be varied by controlling the electrokinetics parameters. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Electrical & Electronic ; Instruments & Instrumentation |
| 研究领域[WOS] | Engineering ; Instruments & Instrumentation |
| 关键词[WOS] | WALLED CARBON NANOTUBES ; DIELECTROPHORESIS ; MANIPULATION ; TRANSISTORS ; SEPARATION ; SOLVENT ; DEVICES ; FIELD |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000325836400004 |
| 公开日期 | 2013-10-05 |
| 源URL | [http://ir.sia.cn/handle/173321/12551]  |
| 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 | Yu HB,Hermann, Sascha,Dong ZL,et al. Controlling SWCNT assembling density by electrokinetics[J]. Sensors and Actuators, A: Physical,2013,201:36-42. |
| APA | Yu HB,Hermann, Sascha,Dong ZL,Mai, John,Li WJ,&Schulz, Stefan E..(2013).Controlling SWCNT assembling density by electrokinetics.Sensors and Actuators, A: Physical,201,36-42. |
| MLA | Yu HB,et al."Controlling SWCNT assembling density by electrokinetics".Sensors and Actuators, A: Physical 201(2013):36-42. |
入库方式： OAI收割
来源：沈阳自动化研究所
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