Dielectrophoretic assembly of carbon nanotubes and stability analysis
Dielectrophoretic assembly of carbon nanotubes and stability analysis
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碳纳米管介电泳组装及稳定性分析
DOI：
10.1016/j.pnsc.2013.06.004
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发表时间：
2013-08-01
影响因子：
4.7
通讯作者：
Friedrich, Craig
中科院分区：
文献类型：
--
作者：
An, Libao;Friedrich, Craig
碳纳米管的纳米尺度和优异的性能使其成为纳米电子学的重要组成部分。一个要求是需要操纵单个或多个碳纳米管来桥接电子导体。本文采用介电泳法，利用交变电场将不同尺寸的多壁碳纳米管组装到电极上。实验研究了介电电泳参数、纳米管尺寸以及长度均匀性对组装的影响。测量了组装碳纳米管的电流-电压特性。实验结果表明，介电电泳参数和碳纳米管的长度均匀性对组装结果的稳定性都有影响。选择具有适当长度和足够刚度的均匀碳纳米管，其更易于通过介电电泳控制，对于少量碳纳米管的组装是必要的。(c)2013年中国材料研究会。制作和主办Elsevier B. V.保留所有权利。
Nanoscale dimensions and remarkable properties of carbon nanotubes make them promising building blocks for nanoelectronics. One requirement is the need to manipulate single or multiple carbon nanotubes to bridge electronic conductors. In this paper, multi-walled carbon nanotubes with a variety of sizes are assembled onto electrodes using alternative current electric fields by dielectrophoresis. The effect of the dielectrophoretic parameters and the nanotube size as well as the length uniformity on the assembly is experimentally investigated. Current-voltage characteristics of assembled carbon nanotubes are measured. The experimental results showed that both the dielectrophoretic parameters and length uniformity of carbon nanotubes have an influence on the stability of assembly results. Choosing uniform carbon nanotubes with an appropriate length and sufficient stiffness, which are more controllable by dielectrophoresis, is necessary for an assembly of a small number of carbon nanotubes. (c) 2013 Chinese Materials Research Society. Production and hosting by Elsevier B.V. All rights reserved.