碳纳米管受介电泳作用三维运动仿真

doi:10.3969/j.issn.1001-2400.2016.04.027

西安电子科技大学学报 ›› 2016, Vol. 43 ›› Issue (4): 154-159.doi: 10.3969/j.issn.1001-2400.2016.04.027

碳纳米管受介电泳作用三维运动仿真

王小冲;安立宝;龚亮;陈琰

(华北理工大学机械工程学院，河北省无机非金属材料重点实验室，河北唐山 063009)

收稿日期:2015-04-09 出版日期:2016-08-20 发布日期:2016-10-12
通讯作者: 安立宝(1965-), 男, 教授, 博士, E-mail: lan@ncst.edu.cn
作者简介:王小冲(1990-), 男, 华北理工大学硕士研究生, E-mail: purplean@163.com．
基金资助:
国家自然科学基金资助项目(51172062，51472074)；河北省引进海外高层次人才“百人计划”资助项目(E2012100005)

Three-dimensional simulation of kinetics of carbon nanotubes under dielectrophoresis

WANG Xiaochong;AN Libao;GONG Liang;CHEN Yan

(College of Mechanical Engineering, Hebei Provincial Key Lab. of Inorganic Nonmetallic Materials, North China Univ. of Science and Technology, Tangshan 063009, China)

Received:2015-04-09 Online:2016-08-20 Published:2016-10-12

摘要/Abstract

摘要：

利用溶于介电液中的碳纳米管在外加交变电场作用下极化产生介电泳力和液体粘滞阻力的共同作用，建立了碳纳米管受力和运动模型；对碳纳米管的运动过程进行了仿真，得到了碳纳米管从特定初始点开始的三维运动轨迹和可以实现组装的碳纳米管初始点分布区域．计算了碳纳米管运动过程中所受介电泳力和速度的变化规律，距离电极间隙越近，碳纳米管受力和速度越大，最大分别能达到10^-9N和10⁵μm/s的数量级．仿真结果为碳纳米管介电电泳组装提供指导．

关键词: 碳纳米管, 介电泳, 数学模型, 仿真, 三维运动轨迹

Abstract:

Based on the dielectrophoretic force arising from the polarization of carbon nanotubes (CNTs) in the dielectric fluid under an alternating current electric field and the viscous resistance from the fluid, force and motion models for CNTs under dielectrophoresis (DEP) are established. Simulation is conducted on the translational and rotational motion of CNTs. Three-dimensional trajectories and a distribution region of initial points from where a CNT can be successfully assembled onto the electrode gap are obtained. By calculating the DEP force and translational velocity of a CNT during assembly, we know that the nearer the CNT to the electrode gap, the greater the DEP force and CNT velocity, and that the maximal DEP force and CNT velocity can be respectively of orders 10^-9N and 10^{5^{μm/s. The results of simulation provide guidance for DEP assembly of CNTs.}}

Key words: carbon nanotube, dielectrophoresis, mathematical model, simulation, three-dimensional trajectory

王小冲;安立宝;龚亮;陈琰. 碳纳米管受介电泳作用三维运动仿真[J]. 西安电子科技大学学报, 2016, 43(4): 154-159.

WANG Xiaochong;AN Libao;GONG Liang;CHEN Yan. Three-dimensional simulation of kinetics of carbon nanotubes under dielectrophoresis[J]. Journal of Xidian University, 2016, 43(4): 154-159.

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碳纳米管受介电泳作用三维运动仿真

Three-dimensional simulation of kinetics of carbon nanotubes under dielectrophoresis

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